Movatterモバイル変換

type (Unix)

From Wikipedia, the free encyclopedia

Not to be confused withTYPE (DOS command).

type
Examples of`type` command
Original author	AT&T Corporation
Developers	Variousopen-source andcommercial developers
Initial release	1984; 42 years ago (1984)
Operating system	Unix andUnix-like
Platform	Cross-platform
Type	Command

InUnix andUnix-like operating systems,type is acommand that describes how itsarguments would be interpreted if used as command names.

Where applicable,type will display the command name's path.^[1]^[2] Possible command types are:

The command returns a non-zeroexit status if command names cannot be found.

$typetesttest is a shell builtin$typecpcp is /bin/cp$typeunknownunknown not found$typetypetype is a shell builtin

Thetype command was ashell builtin forBourne shell that was introduced inAT&T's System V Release 2 (SVR2) in 1984,^[3] and continues to be included in many other POSIX-compatible shells such asBash. However,type is not part of thePOSIX standard. With a POSIX shell, similar behavior is retrieved with

command -V name

In theKornShell, the commandwhence provides similar functionality.^[4]

The command is available as a separate package forMicrosoft Windows as part of theUnxUtils collection ofnative Win32 ports of commonGNU Unix-like utilities.^[5]

^"Use Type Command in Linux to Get More Info About Commands".Linux Handbook. 2020-05-11. Retrieved2025-02-09.
^"type command in Linux with Examples".GeeksforGeeks. 2019-05-06.Archived from the original on 2025-03-04. Retrieved2025-02-09.
^"traditional Bourne shell family / history and development".www.in-ulm.de.Archived from the original on 2004-02-03. Retrieved2018-10-07.
^Siever, Ellen (27 July 2005).Linux in a Nutshell. Nutshell handbooks. O'Reilly Media, Inc. (published 2005). p. 695.ISBN 9780596009304. Retrieved2016-07-05.whence [...] Korn shell only. Show whether each command is a Unix command, a built-in command, a defined shell function, or an alias.
^"Native Win32 ports of some GNU utilities".Archived from the original on 2006-02-09. Retrieved2026-02-03.

v t e Unix command-line interface programs andshell builtins
File system	cat chattr chmod chown chgrp cksum cmp cp dd du df file fuser ln ls mkdir mv pax pwd rm rmdir split tee touch type umask
Processes	at bg crontab fg kill nice ps time
User environment	env exit logname mesg talk tput uname who write
Text processing	awk basename comm csplit cut diff dirname ed ex fold head iconv join m4 more nl paste patch printf read sed sort strings tail tr troff uniq vi wc xargs
Shell builtins	alias cd echo test unset wait
Searching	find grep
Documentation	man
Software development	ar ctags lex make nm strip yacc
Miscellaneous	bc cal expr lp od sleep true and false
Categories Standard Unix programs Unix SUS2008 utilities List