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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:

       o   < 0 : if ver1 < ver2

       o   = 0 : if ver1 == ver2

       o   > 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:

       o   Allan McRae <allan@archlinux.org>

       o   Andrew Gregory <andrew.gregory.8@gmail.com>

       o   Dan McGee <dan@archlinux.org>

       o   Dave Reisner <dreisner@archlinux.org>

       Past major contributors:

       o   Judd Vinet <jvinet@zeroflux.org>

       o   Aurelien Foret <aurelien@archlinux.org>

       o   Aaron Griffin <aaron@archlinux.org>

       o   Xavier Chantry <shiningxc@gmail.com>

       o   Nagy Gabor <ngaba@bibl.u-szeged.hu>

       For additional contributors, use git shortlog -s on the pacman.git
       repository.

Pacman 4.2.0                      2014-12-19                         VERCMP(8)