postrm is in dpkg 1.19.0.5ubuntu2.
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 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 | #!/bin/sh
# See deb-postrm(5).
set -e
# Remove log file when dpkg is purged
remove_logfile() {
logdir=$DPKG_ROOT/var/log
rm -f $logdir/dpkg.log $logdir/dpkg.log.* 2>/dev/null
rm -f $logdir/alternatives.log $logdir/alternatives.log.* 2>/dev/null
}
case "$1" in
remove)
;;
purge)
remove_logfile
;;
upgrade)
;;
failed-upgrade|disappear|abort-install|abort-upgrade)
;;
*)
echo "$0 called with unknown argument '$1'" 1>&2
exit 1
;;
esac
exit 0
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