Quickly collect information about packages in different Debian and Ubuntu releases.
apt-venv creates a sort of virtual environments in
$HOME/.local/share/apt-venv (one for each release), able to exec bash sessions where apt thinks to be in another distro/release. In these sessions a
$APT_VENV variable is set and points out the release name in use.
If you want to customize environment you can modify files in:
apt-venv is already available in Debian and Ubuntu utopic unicorn.
Show which version of some package is in Debian and Ubuntu, simply:
# init apt database for releases for release in unstable stable trusty lucid ; do apt-venv $release -u done # do what you want for release in unstable stable trusty lucid ; do apt-venv $release -c "apt-cache madison base-files | grep Source | tail -1" done
If you do not specify -c option you will entry an interactive shell.
$ apt-venv -h usage: apt-venv [-h] [-D DEBUG] [-v] [-d] [-c COMMAND] [-l] [release] positional arguments: release the debian/ubuntu release optional arguments: -h, --help show this help message and exit -D DEBUG, --debug DEBUG set debug level -v, --version show program's version number and exit -c COMMAND, --command COMMAND exec the given command instead of entry the interactive shell -d, --delete delete venv for release -l, --list list all venv installed in your system -u, --update update the apt indexes