SettingsStandard Unix programs
alias (command)
In computing, alias is a command in various command line interpreters (shells) such as Unix shells, 4DOS/4NT and Windows PowerShell, which enables a replacement of a word by another string.
In computing, alias is a command in various command line interpreters (shells) such as Unix shells, 4DOS/4NT and Windows PowerShell, which enables a replacement of a word by another string.
apropos (Unix)
In computing, apropos is a command to search the manual pages files in Unix and Unix-like operating systems.
In computing, apropos is a command to search the manual pages files in Unix and Unix-like operating systems.
ar (Unix)
The archiver (also known simply as ar) is a Unix utility that maintains groups of files as a single archive file.
The archiver (also known simply as ar) is a Unix utility that maintains groups of files as a single archive file.
at (Unix)
The at command is used to schedule commands to be executed once, at a particular time in the future.
The at command is used to schedule commands to be executed once, at a particular time in the future.
AWK
The AWK utility is a data extraction and reporting tool that uses a data-driven scripting language consisting of a set of actions to be taken against textual data for the purpose of producing fo...
The AWK utility is a data extraction and reporting tool that uses a data-driven scripting language consisting of a set of actions to be taken against textual data for the purpose of producing fo...
Basename
basename is a standard UNIX computer program.
basename is a standard UNIX computer program.
bc programming language
bc, for bench calculator, is "an arbitrary precision calculator language" with syntax similar to the C programming language.
bc, for bench calculator, is "an arbitrary precision calculator language" with syntax similar to the C programming language.
bg (Unix)
bg is a job control command in Unix and Unix-like operating systems that resumes execution of a suspended process without bringing it to the foreground; the resumed process continues to execute ...
bg is a job control command in Unix and Unix-like operating systems that resumes execution of a suspended process without bringing it to the foreground; the resumed process continues to execute ...
cal (Unix)
Cal (Unix) is a standard program on Unix and Unix-like operating systems that prints an ASCII calendar of the given month or year.
Cal (Unix) is a standard program on Unix and Unix-like operating systems that prints an ASCII calendar of the given month or year.
cat (Unix)
The cat command is a standard Unix program used to concatenate and display files.
The cat command is a standard Unix program used to concatenate and display files.
cd (command)
cd, sometimes also available as chdir (change directory), is a command line command to change the current working directory in operating systems such as Unix, DOS, OS/2, AmigaO...
cd, sometimes also available as chdir (change directory), is a command line command to change the current working directory in operating systems such as Unix, DOS, OS/2, AmigaO...
chgrp
The chgrp (from change group) command is used by unprivileged users on Unix-like systems to change the group associated with a computer file.
The chgrp (from change group) command is used by unprivileged users on Unix-like systems to change the group associated with a computer file.
chmod
The chmod command is a Unix command that lets a user tell the system how much access it should permit to a file.
The chmod command is a Unix command that lets a user tell the system how much access it should permit to a file.
chown
The chown command (abbreviation for change owner) is used on Unix-like systems to change the owner of a file.
The chown command (abbreviation for change owner) is used on Unix-like systems to change the owner of a file.
Chsh
chsh (an abbreviation of "change shell") is a command on Unix-like operating systems that is used to change a login shell.
chsh (an abbreviation of "change shell") is a command on Unix-like operating systems that is used to change a login shell.
cksum
cksum is a command in Unix-like operating systems that generates a checksum value for a file or stream of data.
cksum is a command in Unix-like operating systems that generates a checksum value for a file or stream of data.
cmp (Unix)
cmp is a command line utility for computer systems that use Unix or a Unix-like operating system.
cmp is a command line utility for computer systems that use Unix or a Unix-like operating system.
comm
The comm command in the Unix family of computer operating systems is a utility that is used to compare two files for common and distinct lines.
The comm command in the Unix family of computer operating systems is a utility that is used to compare two files for common and distinct lines.
Command (computing)
In computing, a command is a directive to a computer program acting as an interpreter of some kind, in order to perform a specific task.
In computing, a command is a directive to a computer program acting as an interpreter of some kind, in order to perform a specific task.
compress
compress is a UNIX compression program based on the LZC compression method, which is an LZW implementation using variable size pointers as in LZ78.
compress is a UNIX compression program based on the LZC compression method, which is an LZW implementation using variable size pointers as in LZ78.
cp (Unix)
cp is a UNIX command used to copy a file.
cp is a UNIX command used to copy a file.
cron
Cron is a time-based job scheduler in Unix-like computer operating systems.
Cron is a time-based job scheduler in Unix-like computer operating systems.
csplit
The csplit command in Unix is a utility that is used to split a file into two or more smaller files determined by context lines.
The csplit command in Unix is a utility that is used to split a file into two or more smaller files determined by context lines.
Ctags
Ctags is a program that generates an index (or tag) file of names found in source and header files of various programming languages.
Ctags is a program that generates an index (or tag) file of names found in source and header files of various programming languages.
cut (Unix)
In computing, cut is a Unix command line utility which is used to extract sections from each line of input — usually from a file.
In computing, cut is a Unix command line utility which is used to extract sections from each line of input — usually from a file.
dd (Unix)
In computing, dd is a common Unix program whose primary purpose is the low-level copying and conversion of raw data.
In computing, dd is a common Unix program whose primary purpose is the low-level copying and conversion of raw data.
df (Unix)
df (abbreviation for disk free) is a standard Unix computer program used to display the amount of available disk space for filesystems on which the invoking user has appropriate ...
df (abbreviation for disk free) is a standard Unix computer program used to display the amount of available disk space for filesystems on which the invoking user has appropriate ...
diff
In computing, diff is a file comparison utility that outputs the differences between two files.
In computing, diff is a file comparison utility that outputs the differences between two files.
dirname
dirname is a standard UNIX computer program.
dirname is a standard UNIX computer program.
Dot (Unix)
. called the dot command is used to execute its first argument, a file.
. called the dot command is used to execute its first argument, a file.
du (Unix)
du (abbreviated from disk usage) is a standard Unix program used to estimate the file space usage—space used under a particular directory or files on a file system.
du (abbreviated from disk usage) is a standard Unix program used to estimate the file space usage—space used under a particular directory or files on a file system.
dump (program)
dump is a Unix program used to back up file systems.
dump is a Unix program used to back up file systems.
echo (command)
In computing, echo is a command in DOS, OS/2, Microsoft Windows, Singularity, Unix and Unix-like operating systems that places a string on the computer terminal.
In computing, echo is a command in DOS, OS/2, Microsoft Windows, Singularity, Unix and Unix-like operating systems that places a string on the computer terminal.
ed (text editor)
ed is a line editor for the Unix operating system.
ed is a line editor for the Unix operating system.
env
env is a shell command for Unix and Unix-like operating systems.
env is a shell command for Unix and Unix-like operating systems.
ex (text editor)
ex, short for EXtended, is a line editor for Unix systems.
ex, short for EXtended, is a line editor for Unix systems.
Expand (Unix)
expand is a command in the UNIX Operating System.
expand is a command in the UNIX Operating System.
expr
expr is a command line Unix utility which evaluates an expression and outputs the corresponding value.
expr is a command line Unix utility which evaluates an expression and outputs the corresponding value.
fc (Unix)
Fc (Unix) is a standard program on Unix that lists or edits and reexecutes, commands previously entered to an interactive shell.
Fc (Unix) is a standard program on Unix that lists or edits and reexecutes, commands previously entered to an interactive shell.
fg (Unix)
fg is a job control command in Unix and Unix-like operating systems that resumes execution of a suspended process by bringing it to the foreground and thus redirecting its standard input and out...
fg is a job control command in Unix and Unix-like operating systems that resumes execution of a suspended process by bringing it to the foreground and thus redirecting its standard input and out...
file (command)
file is a standard Unix program for recognizing the type of data contained in a computer file using magic numbers.
file is a standard Unix program for recognizing the type of data contained in a computer file using magic numbers.
find
In Unix-like and some other operating systems, find is a command-line utility that searches through one or more directory trees of a file system, locates files based on some user-specified crite...
In Unix-like and some other operating systems, find is a command-line utility that searches through one or more directory trees of a file system, locates files based on some user-specified crite...
ifconfig
ifconfig is a system administration utility in Unix-like operating systems to configure, control, and query TCP/IP network interface parameters from a command line interface or in system configu...
ifconfig is a system administration utility in Unix-like operating systems to configure, control, and query TCP/IP network interface parameters from a command line interface or in system configu...
install (Unix)
The install command is a standard Unix program used to copy files and set file permissions.
The install command is a standard Unix program used to copy files and set file permissions.
ln (Unix)
ln is a standard Unix command used to create links (link) to files.
ln is a standard Unix command used to create links (link) to files.
mount (Unix)
The Unix command line utility mount instructs the operating system that a file system is ready to use, and associates it with a particular point in the system's file system hierarchy (its moun...
The Unix command line utility mount instructs the operating system that a file system is ready to use, and associates it with a particular point in the system's file system hierarchy (its moun...
printf (Unix)
printf ( "print formatted") shell builtin command (and utility program) accepts a format string, which specifies methods for formatting items and a list of items to be formatted.
printf ( "print formatted") shell builtin command (and utility program) accepts a format string, which specifies methods for formatting items and a list of items to be formatted.
source (command)
source is a Unix command that evaluates a file or resource as a Tcl script.
source is a Unix command that evaluates a file or resource as a Tcl script.
Spell (Unix)
Spell is the standard English language spell checker for Unix.
Spell is the standard English language spell checker for Unix.
split (Unix)
split is a Unix utility most commonly used to split a file into two or more smaller files.
split is a Unix utility most commonly used to split a file into two or more smaller files.
Ssh-keygen
SSH-Keygen is a Unix utility that is used to generate, manage, and convert authentication keys for ssh authentication.
SSH-Keygen is a Unix utility that is used to generate, manage, and convert authentication keys for ssh authentication.
sync (Unix)
sync is a standard system call in the Unix operating system, which commits to disk all data in the kernel filesystem buffers, i.e., data which has been scheduled for writing via low-level I/O sy...
sync is a standard system call in the Unix operating system, which commits to disk all data in the kernel filesystem buffers, i.e., data which has been scheduled for writing via low-level I/O sy...
touch (Unix)
touch is a standard Unix program used to change a file's access and modification timestamps.
touch is a standard Unix program used to change a file's access and modification timestamps.
true and false (Unix)
In Unix-like operating systems, true and false are commands whose only function is to always return the value 0 or 1.
In Unix-like operating systems, true and false are commands whose only function is to always return the value 0 or 1.
tty (Unix)
tty is a Unix command that prints to standard output the name of the terminal connected to standard input.
tty is a Unix command that prints to standard output the name of the terminal connected to standard input.
type (Unix)
type is a Unix command that displays how a name would be interpreted if used as a command.
type is a Unix command that displays how a name would be interpreted if used as a command.
watch (Unix)
watch is a GNU command-line tool that runs the specified command repeatedly and displays the output on stdout so you can watch it change over time.
watch is a GNU command-line tool that runs the specified command repeatedly and displays the output on stdout so you can watch it change over time.
who (Unix)
The standard Unix command who displays a list of users who are currently logged into a computer.
The standard Unix command who displays a list of users who are currently logged into a computer.
write (Unix)
write can refer to several Unix commands.
write can refer to several Unix commands.