postrm is in shared-mime-info 1.9-2.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 | #!/bin/sh
set -e
if [ "$1" = purge ]; then
MIMEDIR="/usr/share/mime"
if [ -e $MIMEDIR ]; then
cd $MIMEDIR && rm -rf $(ls |grep -v ^packages$)
rmdir --ignore-fail-on-non-empty $MIMEDIR
fi
fi
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