V. Commands and Utilities
- Table of Contents
- 15. Commands and Utilities
- 15.1. Commands and Utilities
- 15.2. Command Behavior
- ar -- create and maintain library archives (DEPRECATED)
- at -- examine or delete jobs for later execution
- awk -- pattern scanning and processing language
- batch -- schedule commands to be executed in a batch queue
- bc -- an arbitrary precision calculator language
- chfn -- change user name and information
- chsh -- change login shell
- col -- filter reverse line feeds from input
- cpio -- copy file archives in and out
- crontab -- maintain crontab files for individual users
- cut -- split a file into sections determined by context lines
- df -- report file system disk space usage
- dmesg -- print or control the system message buffer
- du -- estimate file space usage
- echo -- write arguments to standard output
- egrep -- search a file with an Extended Regular Expression pattern
- fgrep -- search a file with a fixed pattern
- file -- determine file type
- find -- search for files in a directory hierarchy
- fuser -- identify processes using files or sockets
- gettext -- retrieve text string from message catalog
- grep -- print lines matching a pattern
- groupadd -- create a new group
- groupdel -- delete a group
- groupmod -- modify a group
- groups -- display a group
- gunzip -- uncompress files
- gzip -- compress or expand files
- hostname -- show or set the system's host name
- install -- copy files and set attributes
- install_initd -- activate an init script
- ipcrm -- remove IPC Resources
- ipcs -- provide information on ipc facilities
- killall -- kill processes by name
- lpr -- off line print
- ls -- list directory contents
- lsb_release -- print distribution specific information
- m4 -- macro processor
- md5sum -- generate or check MD5 message digests
- mknod -- make special files
- mktemp -- make temporary file name (unique)
- more -- display files on a page-by-page basis
- mount -- mount a file system
- msgfmt -- create a message object from a message file
- newgrp -- change group ID
- od -- dump files in octal and other formats
- passwd -- change user password
- patch -- apply a diff file to an original
- pidof -- find the process ID of a running program
- remove_initd -- clean up init script system modifications introduced by install_initd
- renice -- alter priority of running processes
- sed -- stream editor
- sendmail -- an electronic mail transport agent
- sh -- shell, the standard command language interpreter
- shutdown -- shut the system down
- su -- change user ID
- sync -- flush file system buffers
- tar -- file archiver
- umount -- unmount file systems
- useradd -- create a new user or update default new user information
- userdel -- delete a user account and related files
- usermod -- modify a user account
- xargs -- build and execute command lines from standard input