> [postgres@lx90158 ~]$ dpkg
> -bash: dpkg: command not found
The very first thing to do is: get informed about the Linux distribution you're working on:
cat /etc/os-release
then use the appropriate tools.
> [postgres@lx90158 ~]$
>
> RPM seems to be too vast a topic for me to try a quick and dirty command. Need to read up on it.
The two commands you would need (IIRC):
rpm -qa | grep -i postgres
rpm -qlp packagename
HTH, Chris