On Thu, Jan 07, 2021 at 08:12:52AM -0500, Jim Popovitch wrote: > What is a script'able way to list a pkg version (or nothing if it is not > installed)? > > +1 for POSIX compatibility.
unicorn:~$ dpkg-query --show --showformat '${Version}\n' bash
5.0-4
unicorn:~$ dpkg-query --show --showformat '${Version}\n' gnome-core
dpkg-query: no packages found matching gnome-core
unicorn:~$ dpkg-query --show --showformat '${Version}\n' gnome-core 2>/dev/null
unicorn:~$
