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>
· 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 4.1.2 2013-06-18 VERCMP(8)