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LINUX Commands
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1
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ac
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Print statistics about the time they have been connected users.
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2
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adduser
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See useradd.
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3
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alias
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Create shortcuts to commands, list current aliases.
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4
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apt-get
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Tool actualizacón / remote installation packages in debian based systems.
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5
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arp
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Lets get / manipulate the list of MAC / IP addresses that the system sees.
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6
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arping
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Sends ARP REQUEST to other computers on the network.
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7
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arptables
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Firewall functions similar to control iptables but arp protocol traffic.
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8
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at
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Work program, commands, scripts for later execution.
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9
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atq
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List scheduled jobs pending execution by the at command.
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10
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awk
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Analysis and processing patterns in files and listings.
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11
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basename
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Delete the path name of a file.
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12
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bc
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Calculator and mathematical language, very powerful.
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13
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biosdecode
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BIOS information.
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14
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blkid
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Displays attributes of block devices (disks, usb, etc..) Such as LABEL and UUID, among others.
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15
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bzcat
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Uncompress files using bzip2 compressed or packaged.
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16
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bzip2
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Compressor / decompressor files.
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17
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bzmore
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View the archive contents or packaged using bzip2.
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18
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lime
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Displays a calendar.
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19
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cat
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Displays the contents of files and concatenates files.
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20
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CD
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Change directory.
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21
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cfdisk
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Disk partitioning tool, mainly used on Debian systems.
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22
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chage
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Change the information (expiration, revocation, etc.) of a user's password.
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23
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chattr
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Change extended attributes of files and directories
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24
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chfn
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Change the information used in finger.
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25
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chgrp
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Changes the group of a file (s) or folder (s).
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26
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chkconfig
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Controls / query how services are running or not on startup.
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27
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chmod
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Change the permissions of a file (s) or folder (s).
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28
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chown
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Changes the owner of a file (s) or folder (s).
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29
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chpasswd
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Upgrade passwords or passwords in batch mode. Passwords can update user groups.
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30
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chroot
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Execute commands in a restricted shell root to a directory and its subdirectories.
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31
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chsh
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Change your default shell or login shell.
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32
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cleanlinks
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Cleans symlinks unrelated and also removes empty directories.
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33
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clear
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Clean the terminal.
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34
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cmp
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Compares two files byte by byte.
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35
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convertquota
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Converts from old formats quota.group quota.user and new formats and aquota.group aquota.user.
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36
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cpio
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Copy, create, and extract compressed files in different formats and between teams or locally.
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37
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crontab
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Manage files and cron for root users.
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38
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curl
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Allows you to download or transfer url's.
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39
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cut
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Removes sections (columns mainly) of each line of a file or files.
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40
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date
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Displays / sets the date and time.
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41
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dc
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Interactive Calculator.
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42
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dd
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Convert and copy files and file systems.
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43
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ddate
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Displays the date in calendar format jarring.
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44
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df
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Displays space usage of hard drives or partitions.
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45
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diff
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Search and show differences between files.
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46
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dig
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Props for querying DNS servers.
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47
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dircolors
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Color setup for ls.
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48
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dirs
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Allows you to display, manipulate the list of directories used in the stack. (See popd and pushd)
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49
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dmesg
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Displays messages system startup (boot).
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50
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dmidecode
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List of computer hardware BIOS directly. (Also: lshw)
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51
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dos2unix
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Converts files from MS-DOS to Unix format / Linux.
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52
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du
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Displays space usage of files and directories.
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53
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dump
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Allows creation of backups for the file systems ext2 and ext3.
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54
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ECHO
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Prints a line of text, variables, or content to a file.
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55
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edquota
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Manages disk quota control user and group.
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56
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egrep
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It's like the 'grep-E', to use regular expressions.
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57
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eject
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Unmount and eject removable media such as CD-ROMs.
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58
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env
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Run a program in a modified environment.
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59
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ethtool
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Allows you to display or change values of a network card.
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60
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exit
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Exits the current shell or terminal.
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61
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expect
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Create sequences and dialogues with other interactive sessions programmed commands or scripts.
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62
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export
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Exports the value of a variable.
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63
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exportfs
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Maintains a list of file systems NFS type which have been exported.
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64
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expr
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Mathematical expression evaluator.
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65
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factor
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Find the primes of a given number.
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66
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fc
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List, edit and reejecuta previously executed commands.
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67
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fdisk
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Disk partitioning tool, common to almost all distros.
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68
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fgrep
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It's like 'grep-F' to use regular expressions in file searches and listings.
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69
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file
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Determines the file type.
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70
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find
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File search, multiple search options.
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71
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findfs
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Find a filesystem by UUID or LABEL (label).
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72
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findsmb
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List information about computers that respond to SMB packets. List a Windows network.
(Part Samba)
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73
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finger
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Displays information about the system users.
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74
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Fortune
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Prints a random adage.
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75
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fping
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Lets send ICMP packets (pings) to multiple computers on a network and determine if they are alive or not.
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76
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free
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Shows the used and free space of RAM and Swap.
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77
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fsck
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Tool to verify / repair file systems.
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78
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fuser
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Identify processes using files or connections (sockets).
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79
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gawk
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Analysis and processing patterns in files and listings. (Gnu version)
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80
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gcc
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C compiler and GNU C + +.
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81
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gedit
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GNOME text editor.
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82
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gpasswd
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Enables management of the file / etc / group
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83
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gpg
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Tool generation encryption and security certificates (opengpg).
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84
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grep
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Look for patterns of strings within files.
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85
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groupadd
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Create a new group in the system.
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86
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groupdel
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Deletes a group in the system.
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87
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groupmod
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Modifies a group on the system.
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88
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groups
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Prints the groups to which a user belongs.
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89
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gzip
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Compresses / expands files.
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90
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halt
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Turn off the computer.
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91
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hdparm
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Sets and displays features on the hard drives.
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92
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head
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Displays the first lines of a file.
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93
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help
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Help on bash internal commands.
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94
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history
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Displays the user's command history.
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95
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host
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Utility consulting DNS server host.
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96
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hostname
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Displays the computer name.
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97
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htpasswd
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Manage files of user / password for basic authentication of Apache.
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98
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hwclock
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Displays / Sets the date / time changes or hardware. (Date / Time System to date)
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99
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id
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Displays the UID (User ID) and GID (Group ID) of the user
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100
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ifconfig
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Displays / Configures the system's network interfaces.
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101
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ifstat
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Small utility that allows to observe statistics of network interfaces in real time.
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102
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init
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Initialization control ejecucción level.
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103
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insmod
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Modules inserted in the kernel.
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104
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ipcalc
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Perform simple calculations on IP addresses.
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105
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ipcount
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Identifying ranges of network, IP's calculation.
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106
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iptab
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Displays an IP address table prefix according to CIDR
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107
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iptables
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Firewall configuration tool for Linux.
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108
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iptraf
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Network traffic analyzer in text mode.
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109
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iwconfig
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Set up a wireless network card.
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110
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iwlist
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Gets details of a wireless card.
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111
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jobs
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Displays user jobs in suspension or background.
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112
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kate
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KDE Text Editor.
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113
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kill
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Terminates processes, more correctly sends signals to processes.
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114
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killall
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End processes with the same name or group.
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115
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last
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Displays information from past users logged.
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116
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lastb
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Displays information from the previous failed attempts to login.
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117
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less
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Displays the contents of an archive, searchable and movement back and forth.
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118
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ln
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Create links (shortcuts) soft and hard files and directories.
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119
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locale
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Specific information about the local environment variables.
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120
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locate
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Indexes and searches files. Slocate safer to use.
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121
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losetup
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Defines and controls devices such as 'loop'.
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122
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lpq
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Sample documents for printing in the print queue.
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123
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lpr
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Add a document to the print queue.
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124
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ls
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List files and directories.
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125
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lshw
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List of computer hardware BIOS directly. (Also: dmidecode)
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126
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lsmod
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Displays the status of the modules in the kernel.
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127
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lsof
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Displays open files in ejecucción program, or a user, process, etc.
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128
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lspci
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List PCI devices in the system.
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129
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lsusb
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List system usb devices.
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130
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mail
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Send and receive email.
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131
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man
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Command displays the manual indicated.
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132
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mc
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Handler archvivos with mouse support in text mode, not every distro I have.
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133
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mcedit
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Mc text editor.
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134
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md5sum
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Check (and creates) files with md5 signature certification.
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135
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mkdir
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Create directories.
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136
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mkfs
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Build a Linux file system.
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137
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mkpasswd
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Password generator. (Software Package 'expect').
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138
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modinfo
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Displays information about kernel modules.
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139
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modprobe
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Tool to add / remove kernel modules.
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140
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more
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Pager similar to but less funcioanal less as it comes forward and retocede.
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141
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mount
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Monta storage partitions enabled devices listed.
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142
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mtools
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Set of utilities to access DOS disks from Linux.
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143
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mv
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Moves files and directories.
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144
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netstat
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Network Utility showing connections, routing tables, interface statistics, etc..
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145
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nice
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Run a program with a priority other than normal ejecucción.
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146
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nohup
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Runs a program immune to hangups and without access to a terminal.
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147
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openssl
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Control, management, security certificate generation.
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148
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partprobe
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Tells the operating system to the changes mentioned in / etc / fstab
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149
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passwd
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Changes the specified user's password.
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150
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ping
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Send an ECHO_REQUEST (echo request) to a computer on the network.
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151
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pkill
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Send signals to processes based on their attributes.
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152
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popd
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Removes entries (directories used) from the list of directories used in the stack. (See dirs and pushd)
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153
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pr
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Format or convert text files for printing.
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154
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ps
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Displays system processes or user or both.
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155
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pstree
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Displays processes as a tree.
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156
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pushd
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Adds entries (directories used) in the directory list (stack or stack). (See dirs and popd)
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157
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pwck
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Check the integrity of the file / etc / passwd
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158
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pwconv
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Add shadow protection or sets the file / etc / passwd.
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159
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quota
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You can see the use of user fees.
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160
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quotacheck
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Create, verify, manage disk quota systems
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161
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quotaoff
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Deactivates disk quotas.
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162
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quotaon
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Active control disk quotas for users and groups.
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163
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rdesktop
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Open graphics terminals has? Ia Windows computers.
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164
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reboot
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Restart the computer.
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165
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renice
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Changes the priority of a process or program ejecucción.
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166
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repquota
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Report use of disk quotas.
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167
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resolveip
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Solve the ip or host domain indicated.
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168
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rev
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Reverses the lines of a file.
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169
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rm
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Deletes or removes files.
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170
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route
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Displays / changes the IP routing table.
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171
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rpm
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Program installation / update / removing packages, redhat based distros.
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172
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runlevel
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Displays the current run level and previous system.
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173
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scp
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Copy files between computers, part of the package openssh (encrypted communication protocol).
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174
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screen
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Virtual terminal manager.
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175
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thirst
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Editor online file filters and transforms.
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176
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service
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Run / stop services manually.
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177
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set
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Displays or sets the environment variables for the user actuual.
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178
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sha1sum
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Check (and creates) files sha1 signature certification.
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179
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shopt
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Enables or disables variables shell optional behavior.
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180
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shred
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Delete files securely and unrecoverable.
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181
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shutdown
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Turn off or restart your computer.
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182
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sort
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Sort lines of files and playlists
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183
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ss
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Props like netstat but basic socket set fast listings.
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184
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ssh
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Secure remote login program, openssh package program (encrypted communication protocol).
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185
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startx
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Log X.
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186
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his
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Change the current user indicated.
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187
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sudo
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Allows user runs indicate that root commands.
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188
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sync
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Forza memory blocks to disk, update the super block.
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189
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tac
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As cat shows and / or concatenated files in reverse.
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190
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tail
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Displays the end of a file.
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191
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tailf
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Synonym tail-f command, lets you see in real time the end of a file, ie as you type, useful for monitoring logs.
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192
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tar
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Tool packer / compressor files.
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193
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testparm
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Check samba smb.conf file for errors or corrections.
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194
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time
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Returns the time that you ran the command or program indicated.
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195
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top
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Displays system processes interactively and continuously.
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196
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touch
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Create empty files, change access dates and / or modification of files.
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197
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tput
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Change values or terminal capabilities, based on terminfo.
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198
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traceroute
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Prints the route network packets to the destination.
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199
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tty
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Print the name of the terminal on which this.
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200
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tzselect
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Set an area or zone.
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201
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umask
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Set permissions mask when creating directories and files.
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202
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umount
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Unmount file systems.
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203
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unalias
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Removes alias command, created with the alias command.
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204
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uname
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Displays system information.
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205
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uniq
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Omits or reports on repeated lines in a file or listing.
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206
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units
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Converter units from one system to another, supports dozens of metrics.
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207
|
up2date
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Upgrade Tool / remote installation package (used in redhat, centos).
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208
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uptime
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Shows how long has turned on the computer.
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209
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urpme
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Urpmi package program to uninstall or remove packages.
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210
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urpmi
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Upgrade Tool / remote installation packages, rpm based distros (used in mandriva).
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211
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useradd
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Add users.
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212
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userdel
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Removes users.
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213
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usermod
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Modifies user information.
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214
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users
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Displays the user names of all users currently connected to the system.
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215
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vi
|
Display visual editor, text editor, you find in all Linux distros.
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216
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vim
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Same as vi but improved.
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217
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visudo
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Editor for the configuration file / etc / sudoers sudo.
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218
|
vmstat
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Provides information on virtual memory.
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219
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w
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Shows who is connected to the system and you are doing.
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220
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wall
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Send a message to all terminals.
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221
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warnquota
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Configure / etc / warnquota.conf to complement messages for disk quotas.
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222
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wc
|
Account words, lines, characters from a file or listing.
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223
|
wget
|
File Downloader from the Internet and not interactive.
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224
|
whatis
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Short description, in a line of a command or program.
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225
|
whereis
|
Locate the binary, source and / or libraries, and documentation of a comado.
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226
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Which
|
Shows the full path of a command.
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227
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who
|
Shows who is connected to the system.
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228
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whoami
|
Displays the current user.
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229
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xhost
|
Access control for X sessions
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230
|
xkill
|
Mata or ends to an X client, ie a graphics program.
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231
|
yes
|
Prints a string repeatedly until terminated or killed the command.
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232
|
yum
|
Upgrade Tool / remote installation packages, rpm based distros (used in fedora, redhat and derivatives).
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233
|
zcat
|
Unzip / sample files compressed with gunzip (identical to gunzip-c)
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234
|
zenity
|
Displays various types of dialogues in X from a terminal.
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235
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zless
|
Displays the contents of compressed files.
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236
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zmore
|
Displays the contents of compressed files. |
