An A-Z Index of the Bash command line for Linux.

<div dir="ltr" style="text-align: left;" trbidi="on"> alias Create an alias •<br /><br />apropos  Search Help manual pages (man -k)<br /><br />apt-get Search for and install software packages (Debian/Ubuntu)<br /><br />aptitude Search for and install software packages (Debian/Ubuntu)<br /><br />aspell Spell Checker<br /><br />awk Find and Replace text, database sort/validate/index<br /><br />b<br /><br />basename Strip directory and suffix from filenames<br /><br />bash     GNU Bourne-Again SHell<br /><br />bc Arbitrary precision calculator language<br /><br />bg Send to background<br /><br />break Exit from a loop •<br /><br />builtin Run a shell builtin<br /><br />bzip2 Compress or decompress named file(s)<br /><br />c<br /><br />cal Display a calendar<br /><br />case Conditionally perform a command<br /><br />cat Display the contents of a file<br /><br />cd Change Directory<br /><br />cfdisk Partition table manipulator for Linux<br /><br />chgrp Change group ownership<br /><br />chmod Change access permissions<br /><br />chown Change file owner and group<br /><br />chroot Run a command with a different root directory<br /><br />chkconfig System services (runlevel)<br /><br />cksum Print CRC checksum and byte counts<br /><br />clear    Clear terminal screen<br /><br />cmp Compare two files<br /><br />comm Compare two sorted files line by line<br /><br />command Run a command – ignoring shell functions •<br /><br />continue Resume the next iteration of a loop •<br /><br />cp Copy one or more files to another location<br /><br />cron Daemon to execute scheduled commands<br /><br />crontab Schedule a command to run at a later time<br /><br />csplit Split a file into context-determined pieces<br /><br />cut Divide a file into several parts<br /><br />d<br /><br />date Display or change the date & time<br /><br />dc Desk Calculator<br /><br />dd Convert and copy a file, write disk headers, boot records<br /><br />ddrescue Data recovery tool<br /><br />declare Declare variables and give them attributes •<br /><br />df Display free disk space<br /><br />diff Display the differences between two files<br /><br />diff3 Show differences among three files<br /><br />dig DNS lookup<br /><br />dir Briefly list directory contents<br /><br />dircolors Colour setup for `ls’<br /><br />dirname Convert a full pathname to just a path<br /><br />dirs Display list of remembered directories<br /><br />dmesg Print kernel & driver messages<br /><br />du Estimate file space usage<br /><br />e<br /><br />echo Display message on screen •<br /><br />egrep Search file(s) for lines that match an extended expression<br /><br />eject Eject removable media<br /><br />enable Enable and disable builtin shell commands •<br /><br />env Environment variables<br /><br />ethtool  Ethernet card settings<br /><br />eval Evaluate several commands/arguments<br /><br />exec Execute a command<br /><br />exit Exit the shell<br /><br />expect Automate arbitrary applications accessed over a terminal<br /><br />expand Convert tabs to spaces<br /><br />export Set an environment variable<br /><br />expr Evaluate expressions<br /><br />f<br /><br />false Do nothing, unsuccessfully<br /><br />fdformat Low-level format a floppy disk<br /><br />fdisk Partition table manipulator for Linux<br /><br />fg Send job to foreground<br /><br />fgrep Search file(s) for lines that match a fixed string<br /><br />file     Determine file type<br /><br />find Search for files that meet a desired criteria<br /><br />fmt Reformat paragraph text<br /><br />fold Wrap text to fit a specified width.<br /><br />for Expand words, and execute commands<br /><br />format   Format disks or tapes<br /><br />free     Display memory usage<br /><br />fsck File system consistency check and repair<br /><br />ftp      File Transfer Protocol<br /><br />function Define Function Macros<br /><br />fuser Identify/kill the process that is accessing a file<br /><br />g<br /><br />gawk Find and Replace text within file(s)<br /><br />getopts Parse positional parameters<br /><br />grep Search file(s) for lines that match a given pattern<br /><br />groups Print group names a user is in<br /><br />gzip Compress or decompress named file(s)<br /><br />h<br /><br />hash Remember the full pathname of a name argument<br /><br />head Output the first part of file(s)<br /><br />help     Display help for a built-in command •<br /><br />history Command History<br /><br />hostname Print or set system name<br /><br />i<br /><br />id Print user and group id’s<br /><br />if Conditionally perform a command<br /><br />ifconfig Configure a network interface<br /><br />ifdown Stop a network interface<br /><br />ifup Start a network interface up<br /><br />import Capture an X server screen and save the image to file<br /><br />install Copy files and set attributes<br /><br />j<br /><br />jobs List active jobs •<br /><br />join Join lines on a common field<br /><br />k<br /><br />kill Stop a process from running<br /><br />killall Kill processes by name<br /><br />l<br /><br />less Display output one screen at a time<br /><br />let Perform arithmetic on shell variables •<br /><br />ln Make links between files<br /><br />local Create variables •<br /><br />locate Find files<br /><br />logname Print current login name<br /><br />logout Exit a login shell •<br /><br />look Display lines beginning with a given string<br /><br />lpc Line printer control program<br /><br />lpr Off line print<br /><br />lprint   Print a file<br /><br />lprintd  Abort a print job<br /><br />lprintq  List the print queue<br /><br />lprm Remove jobs from the print queue<br /><br />ls List information about file(s)<br /><br />lsof List open files<br /><br />m<br /><br />make     Recompile a group of programs<br /><br />man Help manual<br /><br />mkdir Create new folder(s)<br /><br />mkfifo Make FIFOs (named pipes)<br /><br />mkisofs  Create an hybrid ISO9660/JOLIET/HFS filesystem<br /><br />mknod Make block or character special files<br /><br />more Display output one screen at a time<br /><br />mount Mount a file system<br /><br />mtools Manipulate MS-DOS files<br /><br />mtr Network diagnostics (traceroute/ping)<br /><br />mv Move or rename files or directories<br /><br />mmv Mass Move and rename (files)<br /><br />n<br /><br />netstat  Networking information<br /><br />nice Set the priority of a command or job<br /><br />nl Number lines and write files<br /><br />nohup Run a command immune to hangups<br /><br />Notify-send Send desktop notifications<br /><br />nslookup Query Internet name servers interactively<br /><br />o<br /><br />open Open a file in its default application<br /><br />op Operator access<br /><br />p<br /><br />passwd Modify a user password<br /><br />paste Merge lines of files<br /><br />pathchk  Check file name portability<br /><br />ping Test a network connection<br /><br />pkill Stop processes from running<br /><br />popd Restore the previous value of the current directory<br /><br />pr Prepare files for printing<br /><br />printcap Printer capability database<br /><br />printenv Print environment variables<br /><br />printf Format and print data •<br /><br />ps Process status<br /><br />pushd Save and then change the current directory<br /><br />pwd Print Working Directory<br /><br />q<br /><br />quota Display disk usage and limits<br /><br />quotacheck Scan a file system for disk usage<br /><br />quotactl Set disk quotas<br /><br />r<br /><br />ram ram disk device<br /><br />rcp Copy files between two machines<br /><br />read Read a line from standard input •<br /><br />readarray Read from stdin into an array variable •<br /><br />readonly Mark variables/functions as readonly<br /><br />reboot   Reboot the system<br /><br />rename Rename files<br /><br />renice   Alter priority of running processes<br /><br />remsync  Synchronize remote files via email<br /><br />return Exit a shell function<br /><br />rev Reverse lines of a file<br /><br />rm Remove files<br /><br />rmdir Remove folder(s)<br /><br />rsync Remote file copy (Synchronize file trees)<br /><br />s<br /><br />screen Multiplex terminal, run remote shells via ssh<br /><br />scp Secure copy (remote file copy)<br /><br />sdiff Merge two files interactively<br /><br />sed Stream Editor<br /><br />select Accept keyboard input<br /><br />seq Print numeric sequences<br /><br />set Manipulate shell variables and functions<br /><br />sftp     Secure File Transfer Program<br /><br />shift Shift positional parameters<br /><br />shopt Shell Options<br /><br />shutdown Shutdown or restart linux<br /><br />sleep Delay for a specified time<br /><br />slocate Find files<br /><br />sort Sort text files<br /><br />source Run commands from a file `.’<br /><br />split Split a file into fixed-size pieces<br /><br />ssh Secure Shell client (remote login program)<br /><br />strace   Trace system calls and signals<br /><br />su Substitute user identity<br /><br />sudo Execute a command as another user<br /><br />sum Print a checksum for a file<br /><br />suspend Suspend execution of this shell •<br /><br />symlink Make a new name for a file<br /><br />sync Synchronize data on disk with memory<br /><br />t<br /><br />tail Output the last part of files<br /><br />tar Tape ARchiver<br /><br />tee Redirect output to multiple files<br /><br />test Evaluate a conditional expression<br /><br />time Measure Program running time<br /><br />times User and system times<br /><br />touch Change file timestamps<br /><br />top List processes running on the system<br /><br />traceroute Trace Route to Host<br /><br />trap     Run a command when a signal is set(bourne)<br /><br />tr Translate, squeeze, and/or delete characters<br /><br />true Do nothing, successfully<br /><br />tsort Topological sort<br /><br />tty Print filename of terminal on stdin<br /><br />type Describe a command •<br /><br />u<br /><br />ulimit Limit user resources •<br /><br />umask Users file creation mask<br /><br />umount   Unmount a device<br /><br />unalias Remove an alias •<br /><br />uname Print system information<br /><br />unexpand Convert spaces to tabs<br /><br />uniq Uniquify files<br /><br />units Convert units from one scale to another<br /><br />unset Remove variable or function names<br /><br />unshar Unpack shell archive scripts<br /><br />until Execute commands (until error)<br /><br />useradd Create new user account<br /><br />usermod Modify user account<br /><br />users List users currently logged in<br /><br />uuencode Encode a binary file<br /><br />uudecode Decode a file created by uuencode<br /><br />v<br /><br />v        Verbosely list directory contents (`ls -l -b’)<br /><br />vdir     Verbosely list directory contents (`ls -l -b’)<br /><br />vi Text Editor<br /><br />vmstat Report virtual memory statistics<br /><br />w<br /><br />watch Execute/display a program periodically<br /><br />wc Print byte, word, and line counts<br /><br />whereis Search the user’s $path, man pages and source files for a program<br /><br />which Search the user’s $path for a program file<br /><br />while Execute commands<br /><br />who Print all usernames currently logged in<br /><br />whoami Print the current user id and name (`id -un’)<br /><br />Wget     Retrieve web pages or files via HTTP, HTTPS or FTP<br /><br />write Send a message to another user<br /><br />x<br /><br />xargs Execute utility, passing constructed argument list(s)<br /><br />xdg-open Open a file or URL in the user’s preferred application.<br /><br />yes Print a string until interrupted<br /><br />. Run a command script in the current shell</div>

An A-Z Index of the Bash command line for Linux.

Admin Jixxi 0

alias Create an alias •apropos  Search Help manual pages (man -k)apt-get Search for and install software packages (Debian/Ubuntu)aptitude Search for and install software packages (Debian/Ubuntu)aspel…

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