preinst is in l7-protocols 20090528-4.
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 | #!/bin/sh
set -e
if [ "$1" = "upgrade" -a "$2" = "20090528-1" ]; then
for symlink in $(find /etc/l7-protocols -type l -name '*.pat'); do
if [ $(printf "%s\n" $symlink | sed -e 's:^/etc:/usr/share:') = $(readlink $symlink) ]; then
rm -f "$symlink"
fi
done
fi
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