preinst is in snmp 5.4.3~dfsg-2.4ubuntu1.
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
action="$1"
killall -u snmp 2>/dev/null || true
if [ "$action" = upgrade ]
then
if [ -L /usr/share/doc/snmp ]; then
rm -f /usr/share/doc/snmp
fi
if [ -d /usr/doc/snmp ]; then
rm -rf /usr/doc/snmp
fi
fi
exit 0
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