Every Linux Commands I know A-Z
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A | Command | Command Description |
---|---|---|
Untitled | & | Start a new process in the background |
Untitled | alias | Create an alias • |
Untitled | apropos | Search Help manual pages (man -k) |
Untitled | apt | Search for and install software packages (Debian/Ubuntu) |
Untitled | apt-get | Search for and install software packages (Debian/Ubuntu) |
Untitled | aptitude | Search for and install software packages (Debian/Ubuntu) |
Untitled | aspell | Spell Checker |
Untitled | at | Schedule a command to run once at a particular time |
Untitled | awk | Find and Replace text, database sort/validate/index |
B | ||
Untitled | basename | Strip directory and suffix from filenames |
Untitled | base32 | Base32 encode/decode data and print to standard output |
Untitled | base64 | Base64 encode/decode data and print to standard output |
Untitled | bash | GNU Bourne-Again SHell |
Untitled | bc | Arbitrary precision calculator language |
Untitled | bg | Send to background |
Untitled | bind | Set or display readline key and function bindings • |
Untitled | break | Exit from a loop • |
Untitled | builtin | Run a shell builtin |
Untitled | bzip2 | Compress or decompress named file(s) |
C | ||
Untitled | cal | Display a calendar |
Untitled | caller | Return the context of any active subroutine call • |
Untitled | case | Conditionally perform a command |
Untitled | cat | Concatenate and print (display) the content of files |
Untitled | cd | Change Directory |
Untitled | cfdisk | Partition table manipulator for Linux |
Untitled | chattr | Change file attributes on a Linux file system |
Untitled | chgrp | Change group ownership |
Untitled | chmod | Change access permissions |
Untitled | chown | Change file owner and group |
Untitled | chpasswd | Update passwords in batch mode |
Untitled | chroot | Run a command with a different root directory |
Untitled | chkconfig | System services (runlevel) |
Untitled | cksum | Print CRC checksum and byte counts |
Untitled | clear | Clear terminal screen |
Untitled | cmp | Compare two files |
Untitled | comm | Compare two sorted files line by line |
Untitled | command | Run a command - ignoring shell functions • |
Untitled | continue | Resume the next iteration of a loop • |
Untitled | cp | Copy one or more files to another location |
Untitled | cpio | Copy files to and from archives |
Untitled | cron | Daemon to execute scheduled commands |
Untitled | crontab | Schedule a command to run at a later time |
Untitled | csplit | Split a file into context-determined pieces |
Untitled | curl | Transfer data from or to a server |
Untitled | cut | Divide a file into several parts |
D | ||
Untitled | date | Display or change the date & time |
Untitled | dc | Desk Calculator |
Untitled | dd | Data Duplicator - convert and copy a file, write disk headers, boot records |
Untitled | ddrescue | Data recovery tool |
Untitled | declare | Declare variables and give them attributes • |
Untitled | df | Display free disk space |
Untitled | diff | Display the differences between two files |
Untitled | diff3 | Show differences among three files |
Untitled | dig | DNS lookup |
Untitled | dir | Briefly list directory contents |
Untitled | dircolors | Colour setup for 'ls' |
Untitled | dirname | Convert a full pathname to just a path |
Untitled | dirs | Display list of remembered directories |
Untitled | dos2unix | Windows/MAC to UNIX text file format converter |
Untitled | dmesg | Print kernel & driver messages |
Untitled | dpkg | Package manager (Debian/Ubuntu). |
Untitled | du | Estimate file space usage |
E | ||
Untitled | echo | Display message on screen • |
Untitled | egrep | Search file(s) for lines that match an extended expression |
Untitled | eject | Eject removable media |
Untitled | enable | Enable and disable builtin shell commands • |
Untitled | env | Environment variables |
Untitled | ethtool | Ethernet card settings |
Untitled | eval | Evaluate several commands/arguments |
Untitled | exec | Execute a command |
Untitled | exit | Exit the shell |
Untitled | expand | Convert tabs to spaces |
Untitled | export | Set an environment variable |
Untitled | expr | Evaluate expressions |
F | ||
Untitled | false | Do nothing, unsuccessfully |
Untitled | fdformat | Low-level format a floppy disk |
Untitled | fdisk | Partition table manipulator for Linux |
Untitled | fg | Send job to foreground |
Untitled | fgrep | Search file(s) for lines that match a fixed string |
Untitled | file | Determine file type |
Untitled | find | Search for files that meet a desired criteria |
Untitled | fmt | Reformat paragraph text |
Untitled | fold | Wrap text to fit a specified width |
Untitled | for | Expand words, and execute commands |
Untitled | format | Format disks or tapes |
Untitled | free | Display memory usage |
Untitled | fsck | File system consistency check and repair |
Untitled | ftp | File Transfer Protocol |
Untitled | function | Define Function Macros |
Untitled | fuser | Identify/kill the process that is accessing a file |
G | ||
Untitled | gawk | Find and Replace text within file(s) |
Untitled | getopts | Parse positional parameters |
Untitled | grep | Search file(s) for lines that match a given pattern |
Untitled | groupadd | Add a user security group |
Untitled | groupdel | Delete a group |
Untitled | groupmod | Modify a group |
Untitled | groups | Print group names a user is in |
Untitled | gzip | Compress or decompress named file(s) |
H | ||
Untitled | hash | Remember the full pathname of a name argument |
Untitled | head | Output the first part of file(s) |
Untitled | help | Display help for a built-in command • |
Untitled | history | Command History |
Untitled | hostname | Print or set system name |
Untitled | htop | Interactive process viewer |
I | ||
Untitled | iconv | Convert the character set of a file |
Untitled | id | Print user and group id's |
Untitled | if | Conditionally perform a command |
Untitled | ifconfig | Configure a network interface |
Untitled | ifdown | Stop a network interface |
Untitled | ifup | Start a network interface up |
Untitled | import | Capture an X server screen and save the image to file |
Untitled | install | Copy files and set attributes |
Untitled | iostat | Report CPU and i/o statistics |
Untitled | ip | Routing, devices and tunnels |
J | ||
Untitled | jobs | List active jobs • |
Untitled | join | Join lines on a common field |
K | ||
Untitled | kill | Kill a process by specifying its PID |
Untitled | killall | Kill processes by name |
L | ||
Untitled | less | Display output one screen at a time |
Untitled | let | Perform arithmetic on shell variables • |
Untitled | link | Create a link to a file |
Untitled | ln | Create a symbolic link to a file |
Untitled | local | Create a function variable • |
Untitled | locate | Find files |
Untitled | logname | Print current login name |
Untitled | logout | Exit a login shell • |
Untitled | look | Display lines beginning with a given string |
Untitled | lpc | Line printer control program |
Untitled | lpr | Print files |
Untitled | lprint | Print a file |
Untitled | lprintd | Delete a print job |
Untitled | lprintq | List the print queue |
Untitled | lprm | Remove jobs from the print queue |
Untitled | lsattr | List file attributes on a Linux second extended file system |
Untitled | lsblk | List block devices |
Untitled | ls | List information about file(s) |
Untitled | lsof | List open files |
Untitled | lspci | List all PCI devices |
M | ||
Untitled | make | Recompile a group of programs |
Untitled | man | Help manual |
Untitled | mapfile | Read lines from standard input into an indexed array variable • |
Untitled | mkdir | Create new folder(s) |
Untitled | mkfifo | Make FIFOs (named pipes) |
Untitled | mkfile | Make a file |
Untitled | mkisofs | Create a hybrid ISO9660/JOLIET/HFS filesystem |
Untitled | mknod | Make block or character special files |
Untitled | mktemp | Make a temporary file |
Untitled | more | Display output one screen at a time |
Untitled | most | Browse or page through a text file |
Untitled | mount | Mount a file system |
Untitled | mtools | Manipulate MS-DOS files |
Untitled | mtr | Network diagnostics (traceroute/ping) |
Untitled | mv | Move or rename files or directories |
Untitled | mmv | Mass Move and rename (files) |
N | ||
Untitled | nc | Netcat, read and write data across networks |
Untitled | netstat | Networking connections/stats |
Untitled | nft | nftables for packet filtering and classification |
Untitled | nice | Set the priority of a command or job |
Untitled | nl | Number lines and write files |
Untitled | nohup | Run a command immune to hangups |
Untitled | notify-send | Send desktop notifications |
Untitled | nslookup | Query Internet name servers interactively |
O | ||
Untitled | open | Open a file in its default application |
Untitled | op | Operator access |
P | ||
Untitled | passwd | Modify a user password |
Untitled | paste | Merge lines of files |
Untitled | pathchk | Check file name portability |
Untitled | Perf | Performance analysis tools for Linux |
Untitled | ping | Test a network connection |
Untitled | pgrep | List processes by name |
Untitled | pkill | Kill processes by name |
Untitled | popd | Restore the previous value of the current directory |
Untitled | pr | Prepare files for printing |
Untitled | printcap | Printer capability database |
Untitled | printenv | Print environment variables |
Untitled | printf | Format and print data • |
Untitled | ps | Process status |
Untitled | pushd | Save and then change the current directory |
Untitled | pv | Monitor the progress of data through a pipe |
Untitled | pwd | Print Working Directory |
Q | ||
Untitled | quota | Display disk usage and limits |
Untitled | quotacheck | Scan a file system for disk usage |
R | ||
Untitled | ram | ram disk device |
Untitled | rar | Archive files with compression |
Untitled | rcp | Copy files between two machines |
Untitled | read | Read a line from standard input • |
Untitled | readarray | Read from stdin into an array variable • |
Untitled | readonly | Mark variables/functions as readonly |
Untitled | reboot | Reboot the system |
Untitled | rename | Rename files |
Untitled | renice | Alter priority of running processes |
Untitled | remsync | Synchronize remote files via email |
Untitled | return | Exit a shell function |
Untitled | rev | Reverse lines of a file |
Untitled | rm | Remove files |
Untitled | rmdir | Remove folder(s) |
Untitled | rsync | Remote file copy (Synchronize file trees) |
S | ||
Untitled | screen | Multiplex terminal, run remote shells via ssh |
Untitled | scp | Secure copy (remote file copy) |
Untitled | sdiff | Merge two files interactively |
Untitled | sed | Stream Editor |
Untitled | select | Accept user choices via keyboard input |
Untitled | seq | Print numeric sequences |
Untitled | set | Manipulate shell variables and functions |
Untitled | sftp | Secure File Transfer Program |
Untitled | shift | Shift positional parameters |
Untitled | shopt | Shell Options |
Untitled | shuf | Generate random permutations |
Untitled | shutdown | Shutdown or restart linux |
Untitled | sleep | Delay for a specified time |
Untitled | slocate | Find files |
Untitled | sort | Sort text files |
Untitled | source | Run commands from a file '.' • |
Untitled | split | Split a file into fixed-size pieces |
Untitled | ss | Socket Statistics |
Untitled | ssh | Secure Shell client (remote login program) |
Untitled | stat | Display file or file system status |
Untitled | strace | Trace system calls and signals |
Untitled | su | Substitute user identity |
Untitled | sudo | Execute a command as another user |
Untitled | sum | Print a checksum for a file |
Untitled | suspend | Suspend execution of this shell • |
Untitled | sync | Synchronize data on disk with memory |
T | ||
Untitled | tail | Output the last part of a file |
Untitled | tar | Store, list or extract files in an archive |
Untitled | tee | Redirect output to multiple files |
Untitled | test | Evaluate a conditional expression |
Untitled | time | Measure Program running time |
Untitled | timeout | Run a command with a time limit |
Untitled | times | User and system times |
Untitled | tmux | Terminal multiplexer |
Untitled | touch | Change file timestamps |
Untitled | top | List processes running on the system |
Untitled | tput | Set terminal-dependent capabilities, color, position |
Untitled | traceroute | Trace Route to Host |
Untitled | trap | Execute a command when the shell receives a signal • |
Untitled | tr | Translate, squeeze, and/or delete characters |
Untitled | true | Do nothing, successfully |
Untitled | tsort | Topological sort |
Untitled | tty | Print filename of terminal on stdin |
Untitled | type | Describe a command • |
U | ||
Untitled | ulimit | Limit user resources • |
Untitled | umask | Users file creation mask |
Untitled | umount | Unmount a device |
Untitled | unalias | Remove an alias • |
Untitled | uname | Print system information |
Untitled | unexpand | Convert spaces to tabs |
Untitled | uniq | Uniquify files |
Untitled | units | Convert units from one scale to another |
Untitled | unix2dos | UNIX to Windows or MAC text file format converter |
Untitled | unrar | Extract files from a rar archive |
Untitled | unset | Remove variable or function names |
Untitled | unshar | Unpack shell archive scripts |
Untitled | until | Execute commands (until error) |
Untitled | uptime | Show uptime |
Untitled | useradd | Create new user account |
Untitled | userdel | Delete a user account |
Untitled | usermod | Modify user account |
Untitled | users | List users currently logged in |
Untitled | uuencode | Encode a binary file |
Untitled | uudecode | Decode a file created by uuencode |
V | ||
Untitled | v | Verbosely list directory contents ('ls -l -b') |
Untitled | vdir | Verbosely list directory contents ('ls -l -b') |
Untitled | vi | Text Editor |
Untitled | vmstat | Report virtual memory statistics |
W | ||
Untitled | w | Show who is logged on and what they are doing |
Untitled | wait | Wait for a process to complete • |
Untitled | watch | Execute/display a program periodically |
Untitled | wc | Print byte, word, and line counts |
Untitled | whereis | Search the user's $path, man pages and source files for a program |
Untitled | which | Search the user's $path for a program file |
Untitled | while | Execute commands |
Untitled | who | Print all usernames currently logged in |
Untitled | whoami | Print the current user id and name ('id -un') |
Untitled | wget | Retrieve web pages or files via HTTP, HTTPS or FTP |
Untitled | write | Send a message to another user |
X | ||
Untitled | xargs | Execute utility, passing constructed argument list(s) |
Untitled | xdg-open | Open a file or URL in the user's preferred application. |
Untitled | xxd | Make a hexdump or do the reverse |
Untitled | xz | Compress or decompress .xz and .lzma files |
Untitled | yes | Print a string until interrupted |
Untitled | zip | Package and compress (archive) files |
Untitled | . | Run a command script in the current shell |
Untitled | !! | Run the last command again |
Untitled | ### | Comment / Remark |