VERCMP(8) Pacman Manual VERCMP(8)NAMEvercmp - version comparison utility
SYNOPSISvercmp <version1> <version2>
DESCRIPTIONvercmp 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 ALSOpacman(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.
Pacman 4.2.0 2014-12-19 VERCMP(8)