How to know what is installed on a non-rpm based distribution?
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How to know what is installed on a non-rpm based distribution?
How to know, whether some package is installed or not on a non-rpm based distribution (e.g.Debian)? On a rpm-based distribution, just the rpm -q command gives this information.
Even this is a *BSD forum, I will reply to the Debian part of your question:
dpkg -l | grep ii will show you all installed packages
dpkg -l <packagename>* shows all packages whose name starts with <packagename> and the status of those packages (installed, not installed etc.)
dpkg -l <packagename>* | grep ii same as the previous one, but show only those whose status is "installed" (this would be pretty much the same as rpm -q <package>, if I am not mistaken).
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