View source for Util-linux

{{short description|Package of Linux utilities from the Linux Kernel Organization}}
{{lowercase title}}
{{Infobox software
| name = util-linux
| discontinued = no
| latest release version = {{wikidata|property|preferred|references|edit|P348|P548=Q2804309}}                                             | latest release date    = {{Start date and age|{{wikidata|qualifier|preferred|single|P348|P548=Q2804309|P577}}|df=yes}}
| programming_language = [[C (programming language)|C]]
| operating system = [[Linux]]
| language = 31 languages, 7 full translations<ref>{{cite web
 | title      = Translation Project util-linux textual domain
 | url        = https://translationproject.org/domain/util-linux.html
 | date       = 2022
 | access-date = 2022-06-04}}</ref>
| genre = Utility software
| license = Portions variously under [[GNU General Public License]] (v2+ or v2 only), [[GNU Lesser General Public License]] (v2+) and [[BSD License]].<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/tree/README.licensing
 | title      = README.licensing
 | work       = util-linux source tree
 | access-date = 20 February 2016}}</ref>
| website = {{URL|https://www.kernel.org/pub/linux/utils/util-linux/}}<br />{{URL|https://git.kernel.org/cgit/utils/util-linux/util-linux.git}}
}}

{{mono|'''util-linux'''}} is a package of [[software utility|utilities]] distributed by the [[Linux Kernel Organization]] for use in a [[Linux]] [[operating system]]. A [[Fork (software development)|fork]], {{mono|'''util-linux-ng'''}} (with {{mono|'''ng'''}} meaning "next generation"), was created when development stalled,<ref>{{cite web
 | title      = [ANNOUNCE] util-linux-ng fork
 | url        = https://lkml.org/lkml/2006/12/18/19
 | date       = 2006-12-18
 | author     = Karel Zak
 | access-date = 2014-04-12}}</ref> but {{as of|2011|01|lc=on}} has been renamed back to {{mono|'''util-linux'''}}, and is the official version of the package.<ref>{{cite web
 | title      = [ANNOUNCE] util-linux without -ng
 | url        = https://lkml.org/lkml/2010/12/1/464
 | date       = 2010-12-01
 | author     = Karel Zak
 | access-date = 2014-04-12}}</ref>

==Content==
The package includes the following utilities:
{{div col|colwidth=15em}}
{{not a typo|
* addpart
* [[getty (Unix)|agetty]]
* blkdiscard<ref>{{cite web
 | url        = http://man7.org/linux/man-pages/man8/blkdiscard.8.html
 | title      = blkdiscard(8) - Linux manual page
 | date       = July 2014
 | access-date = 2020-01-13}}</ref>
* [[blkid]]
* blkzone
* blockdev
* [[cal (command)|cal]]
* [[cfdisk]]
* chcpu
* chfn
* chmem
* choom
* chrt
* [[chsh]]
* col (legacy)<ref name="legacy">{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/tree/Documentation/deprecated.txt
 | title      = Documentation/deprecated.txt
 | date       = 2014-04-07
 | work       = util-linux
 | access-date = 2015-07-01}}</ref>
* colcrt
* colrm
* column
* ctrlaltdel
* delpart
* [[dmesg]]
* eject
* fallocate
* [[fdformat]]
* [[fdisk]]
* fincore
* findfs
* findmnt 
* [[File locking|flock]]
* [[fsck]]
* [[fsck]].[[cramfs]]
* [[fsck]].[[MINIX file system|minix]]
* fsfreeze
* fstrim
* [[getopt]]
* hardlink
* [[Hex dump#od and hexdump|hexdump]]
* hwclock{{efn|cquery and set the hardware clock (RTC)}}
* [[ionice]]
* ipcmk
* [[ipcrm]]
* [[ipcs]]
* irqtop<ref>{{cite web
| url = https://lwn.net/Articles/826866/
| title = Release v2.36 notes}}</ref>
* isosize
* [[kill (Unix)|kill]]
* last
* ldattach
* line (legacy)<ref name="legacy"/>
* logger
* login
* look
* [[losetup]]
* lsblk
* lscpu<ref>{{cite web
 | url   = https://man.linuxreviews.org/man1/lscpu.1.html
 | title = lscpu manual
 }}</ref>
* lsfd{{efn|modern replacement for [[lsof]]}}
* lsipc
* lsirq<ref>{{cite web
| url = https://lwn.net/Articles/826866/
| title = Release v2.36 notes}}</ref>
* lslocks
* lslogins
* lsmem
* lsns
* mcookie
* [[mesg]]
* [[mkfs]] (legacy)<ref name="legacy"/>
* [[mkfs]].[[Boot File System|bfs]]
* [[mkfs]].[[cramfs]]
* [[mkfs]].[[MINIX file system|minix]]
* mkswap
* [[more (command)|more]]
* [[mount (Unix)|mount]]
* mountpoint
* namei
* newgrp
* nologin
* nsenter
* partx
* [[pg (Unix)|pg]] (legacy)<ref name="legacy"/>
* pivot_root
* prlimit<ref>{{cite web
 | url        = https://karelzak.blogspot.com/2012/01/prlimit1.html
 | title      = prlimit(1)
 | author     = Karel Zak
 | date       = 2012-01-25
 | access-date = 2020-01-13}}</ref>
* raw
* readprofile
* rename
* [[nice (Unix)|renice]]
* reset (legacy)<ref name="legacy"/>
* resizepart
* rev
* rfkill
* [[RTC Alarm|rtcwake]]
* runuser
* [[script (Unix)|script]]
* scriptlive
* scriptreplay
* setarch{{efn|including architecture symlinks such as i386, linux32, linux64, x86_64, etc.}}
* setpriv
* setsid
* setterm
* [[sfdisk]]
* [[su (Unix)|su]]
* sulogin
* swaplabel
* swapoff
* swapon
* switch_root
* taskset
* tunelp (deprecated)<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=1342ffcbeb0dbad6ec12026f1dad27a26d27248f
 | title      = tunelp: deprecation: remove command from default build
 | author     = Sami Kerola
 | date       = 2012-12-16
 | work       = util-linux
 | access-date = 2014-04-12}}</ref> 
* ul
* umount
* unshare
* utmpdump
* uuidd
* uuidgen
* uuidparse
* [[vipw]]{{efn|including symlink to vigr}}
* [[wall (Unix)|wall]]
* wdctl
* [[whereis]]
* wipefs
* [[write (Unix)|write]]
* zramctl
{{div col end}}
}}

==Removed content==
Utilities formerly included, but removed {{as of|2015|07|01|lc=on}}:
{{div col|colwidth=25em}}
* arch<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=27abd8094845b4b2002a8ed5c3dd212999902c8f
 | title      = arch: remove the command, deprecated since 2.13, use coreutils version
 | author     = Karel Zak
 | date       = 2013-03-14
 | work       = util-linux
 | access-date = 2015-07-01}}</ref>
* chkdupexe<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=58a3cee647c30ee23c887a1763ab9e4504a1ec88
 | title      = chkdupexe: remove, deprecated for years
 | author     = Karel Zak
 | date       = 2013-03-14
 | work       = util-linux
 | access-date = 2015-07-01}}</ref>
* clock<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/tree/NEWS?id=f2f731deb883299880ac16a1dccb3a3865c9f7cd#n1296
 | title      = clock: Dropped entirely. Use hwclock
 | author     = Karel Zak
 | work       = util-linux
 | access-date = 2015-07-01}}</ref>
* cytune<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=198556b76caadc90286db2f489fbfafffc4bb3cb
 | title      = cytune: remove from util-linux
 | author     = Sami Kerola
 | date       = 2014-05-11
 | work       = util-linux
 | access-date = 2015-07-01}}</ref>
* [[ddate]]{{efn|removed from default build<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=4a8962f3a7cb970b28add7d770528edebbe03635
 | title      = build-sys: add --enable-ddate
 | author     = Karel Zak
 | date       = 2011-08-18
 | work       = util-linux
 | access-date = 2014-04-12}}</ref> before being removed<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=4cf02b65109029a38f708148dea8d2bdf2fa19de
 | title      = ddate: remove from util-linux
 | author     = Sami Kerola
 | date       = 2012-10-08
 | work       = util-linux
 | access-date = 2015-07-01}}</ref> altogether}}
* elvtune<ref>{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=a272c5747c08495187d4f1b7fb1c9874af597b32
 | title      = build-sys: complete elvtune removal
 | author     = Sami Kerola
 | date       = 2013-08-17
 | work       = util-linux
 | access-date = 2015-07-01}}</ref>
* fastboot<ref name="simpleinit">{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=0ff9e65ea30ee7e3548d11992a180d95d0a02fe9
 | title      = simpleinit: remove this deprecated set of utils
 | author     = Karel Zak
 | date       = 2011-06-08
 | work       = util-linux
 | access-date = 2014-04-12}}</ref>
* fasthalt<ref name="simpleinit"/>
* halt<ref name="simpleinit"/>
* initctl<ref name="simpleinit"/>
* ramsize{{efn|name=to-rdev|formerly a symlink to rdev<ref name="rdev"/>}}
* rdev<ref name="rdev">{{cite web
 | url        = https://git.kernel.org/cgit/utils/util-linux/util-linux.git/commit/?id=a3e40c14651fccf18e7954f081e601389baefe3f
 | title      = rdev: remove this deprecated command
 | author     = Karel Zak
 | date       = 2010-05-13
 | work       = util-linux
 | access-date = 2014-04-12}}</ref>
* reboot<ref name="simpleinit"/>
* rootflags{{efn|name=to-rdev}}
* [[shutdown (command)|shutdown]]<ref name="simpleinit"/>
* simpleinit<ref name="simpleinit"/>
* tailf<ref name="tailf">{{cite web
| url = https://www.spinics.net/lists/util-linux-ng/msg13779.html
| title = tailf: remove deprecated utility
| author = Sami Kerola
| date = 2017-04-02
| work = util-linux}}</ref>
* vidmode{{efn|name=to-rdev}}
{{div col end}}

==See also==
* {{Annotated link|BusyBox}}
* {{Annotated link|CUPS}}
* {{Annotated link|GNU Core Utilities}}
* {{Annotated link|Toybox}}
* {{Annotated link|uname}}

==Notes==
{{notelist}}

==References==
{{Reflist|30em}}

==External links==
* [https://git.kernel.org/cgit/utils/util-linux/util-linux.git/ The util-linux code repository.]
* [https://www.kernel.org/pub/linux/utils/util-linux/ pub/linux/utils/util-linux] on [[Kernel.org]]
* [http://vger.kernel.org/vger-lists.html#util-linux util-linux development discussion and bug reporting mailing list]
* [https://karelzak.blogspot.com/ Karel Zak's blog], the blog of the current maintainer

{{Unix commands}}

[[Category:Linux]]
[[Category:Hardware in Linux]]
[[Category:Free system software]]
[[Category:Free software programmed in C]]