These two commands tell you which package owns a particular file for an RPM or DEB based system respectively.

rpmquery –whatprovides <path-to-file>

dpkg-query –search <path-to-file>

(The short form for dpkg is -S)

To list the files owned by a package use:

rpmquery –list <package>

dpkg-query -L <package>

(This long form for debian is –listfiles )

A useful utility to find all the other files in a package for a given binary (in this case lsof) is:

rpmquery –list $(rpmquery –whatprovides $(which lsof ) )

Or

dpkg-query -L $(dpkg-query –search $( which lsof ) | sed ‘s!\:.*!!’ )