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VERCMP(8) Pacman Manual VERCMP(8)

NAME

vercmp - version comparison utility

SYNOPSIS

vercmp <version1> <version2>

DESCRIPTION

vercmp is used to determine the relationship between two given version numbers. It outputs values as follows:
 
•< 0 : if ver1 < ver2
 
•= 0 : if ver1 == ver2
 
•> 0 : if ver1 > ver2
 
Version comparison operates as follows:
 
Alphanumeric:
  1.0a < 1.0b < 1.0beta < 1.0p < 1.0pre < 1.0rc < 1.0 < 1.0.a < 1.0.1
Numeric:
  1 < 1.0 < 1.1 < 1.1.1 < 1.2 < 2.0 < 3.0.0
 
Additionally, version strings can have an epoch value defined that will overrule any version comparison, unless the epoch values are equal. This is specified in an epoch:version-rel format. For example, 2:1.0-1 is always greater than 1:3.6-1.
 
Keep in mind that the pkgrel is only compared if it is available on both versions given to this tool. For example, comparing 1.5-1 and 1.5 will yield 0; comparing 1.5-1 and 1.5-2 will yield < 0 as expected. This is mainly for supporting versioned dependencies that do not include the pkgrel.

OPTIONS

-h, --help
Display syntax for the given operation. If no operation was supplied, then the general syntax is shown.

EXAMPLES

$ vercmp 1 2
-1
 
$ vercmp 2 1
1
 
$ vercmp 2.0-1 1.7-6
1
 
$ vercmp 2.0 2.0-13
0
 
$ vercmp 4.34 1:001
-1

CONFIGURATION

There is none.

SEE ALSO

pacman(8), makepkg(8), libalpm(3)
 
See the pacman website at https://www.archlinux.org/pacman/ for current information on pacman and its related tools.

BUGS

Bugs? You must be kidding; there are no bugs in this software. But if we happen to be wrong, send us an email with as much detail as possible to pacman-dev@archlinux.org.

AUTHORS

Current maintainers:
 
•Allan McRae <allan@archlinux.org>
 
•Andrew Gregory <andrew.gregory.8@gmail.com>
 
•Dan McGee <dan@archlinux.org>
 
•Dave Reisner <dreisner@archlinux.org>
 
Past major contributors:
 
•Judd Vinet <jvinet@zeroflux.org>
 
•Aurelien Foret <aurelien@archlinux.org>
 
•Aaron Griffin <aaron@archlinux.org>
 
•Xavier Chantry <shiningxc@gmail.com>
 
•Nagy Gabor <ngaba@bibl.u-szeged.hu>
 
For additional contributors, use git shortlog -s on the pacman.git repository.
2017-06-03 Pacman 5.0.2