postrm is in imagemagick-doc 8:6.9.7.4+dfsg-16ubuntu6.
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 | #!/bin/sh
set -e
# remove after strech+2
dpkg-maintscript-helper \
dir_to_symlink /usr/share/doc/imagemagick-doc /usr/share/doc/imagemagick-6-common 8:6.9.2.10+dfsg-1~ -- "$@"
|