app-portage/version
From Gentoo Wiki
Version command is a package that is used for the following tasks:
- get version information of a package.
- operate with version of a package.
Make the program available by adding guru repository:
root #
eselect repository enable guru
root #
emaint sync -r guru
Install the package:
root #
emerge --ask app-portage/version
Display available options:
user $
version -h
For example, use the following command to the version of 'gentoolkit' package:
user $
version -g app-portage/gentoolkit
0.5.0
Use 's' option to check if the version is smaller than the specified version (in this case 1.0):
user $
version -c app-portage/gentoolkit s= 1.0
true
or (if the shell accepts a more friendly syntax):
user $
version -c app-portage/gentoolkit <= 1.0
true
Descriptive outputs can be enabled with 'i' option:
user $
version -ci app-portage/gentoolkit s= 1.0
app-portage/gentoolkit : pass(0.5.0)
There is also an option to get the current platform:
user $
version -p
Portage