- Table of Contents
- ar — create and maintain library archives
- at — examine or delete jobs for later execution
- awk — pattern scanning and processing language
- batch — execute commands when the system load permits
- bc — An arbitrary precision calculator language
- cat — concatenate and print files
- chfn — change user name and information
- chgrp — change group ownership
- chmod — change file access permissions
- chown — change file access permissions
- chsh — change login shell
- col — filter reverse line feeds from input
- cp — copy files and directories
- cpio — copy file archives in and out
- csplit — split a file into sections determined by context lines
- crontab — maintain crontab files for individual users
- cut — split a file into sections determined by context lines
- date — print or set the system date and time
- dd — convert and copy a file
- df — report filesystem disk space usage
- diff — find differences between two files
- dmesg — print or control the kernel ring buffer
- du — estimate file space usage
- echo — display a line of text
- egrep — search a file with an ERE pattern
- env — run a program in a modified environment
- expand — convert tabs to spaces
- expr — evaluate expressions
- fgrep — search a file with an ERE pattern
- file — determine file type
- find — search for files in a directory hierarchy
- fuser — identify processes using files or sockets
- gencat — generate a formatted message catalogue
- grep — print lines matching a pattern
- groupadd — Create a new group
- groupdel — Delete a group
- groupmod — Modify a group
- groups — Display a group
- gzip — compress or expand files
- gunzip — uncompress files
- head — output the first part of files
- hostname — show the system's host name
- iconv — show the system's host name
- install — copy files and set attributes
- ipcrm — Create a new user or update default new user information
- ipcs — copy files and set attributes
- killall — kill processes by name
- ln — make links between files
- localedef — split a file into sections determined by context lines
- login — Begin session on the system
- lpr — off line print
- ls — list directory contents
- lsb_release — print distribution specific information
- m4 — macro processor
- make — maintain, update and regenerate groups of programs
- man — display system documentation
- md5sum — generates or checks MD5 message digests
- mkdir — make directories
- mknod — make block or character special files
- mktemp — make temporary file name (unique)
- more — file perusal filter for crt viewing
- mount — Create a new user or update default new user information
- mv — move (rename) files
- newgrp — Change group ID
- nice — nice run a program with modified scheduling priority
- nl — number lines of files
- nohup — nohup run a command immune to hangups, with output to a non-tty
- od — dump files in octal and other formats
- passwd — change user password
- paste — merge lines of files
- patch — apply a diff file to an original
- pathchk — check whether file names are valid or portable.
- pidof — find the process ID of a running program.
- pr — split a file into sections determined by context lines
- printf — and print data.
- pwd — print name of current/working directory.
- renice — alter priority of running processes
- rm — remove files or directories.
- rmdir — remove empty directories.
- rsync — faster, flexible replacement for rcp
- sed — stream editor
- sendmail — an electronic mail transport agent
- shutdown — bring the system down
- sleep — delay for a specified amount of time
- sort — sort, merge or sequence check text files
- split — split a file into pieces
- strip — remove unnecessary information from executable files
- su — Change user ID or become super-user
- sum — print checksum and block count of a file
- sync — flush filesystem buffers
- tail — output the last part of files
- tar — file archiver
- tee — read from standard input and write to standard output and files
- test — check file types and compare values
- time — run programs and summarize system resource usage
- touch — change file access and modification times
- tr — translate or delete characters
- tty — print the file name of the terminal connected to standard input
- umount — unmount file systems
- uname — return system name
- unexpand — convert spaces to tabs
- uniq — remove duplicate lines from a sorted file
- useradd — Create a new user or update default new user information
- userdel — Delete a user account and related files
- usermod — Modify a user account
- wc — print the number of bytes, words, and lines in files
- xargs — build and execute command lines from standard input
This section contains descriptions of commands that are not documented by other
standards, or descriptions of the difference from other standards.