prerm is in unrar-free 1:0.0.1+cvs20071127-2.
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 14 15 16 17 18 19 20 21 | #!/bin/sh
set -e
case "$1" in
    remove|upgrade|deconfigure)
        update-alternatives --remove unrar /usr/bin/unrar-free
    ;;
    
    failed-upgrade)
    ;;
    
    *)
      echo "postinst called with unknown argument \$1'" >&2
      exit 0
    ;;
esac
exit 0
 |