prerm is in exim4-daemon-heavy 4.82-3ubuntu2.
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 | #!/bin/sh
set -e
if [ -n "$EX4DEBUG" ]; then
echo "now debugging $0 $@"
set -x
fi
case "$1" in
remove|upgrade)
if [ -x /etc/init.d/exim4 ]; then
if [ -n "$EX4DEBUG" ]; then
netstat -tulpen
ls -al /var/run/exim4/
cat /var/run/exim4/exim.pid
pidof exim4
fi
if command -v invoke-rc.d >/dev/null 2>&1; then
invoke-rc.d exim4 stop
else
/etc/init.d/exim4 stop
fi
if [ -n "$EX4DEBUG" ]; then
netstat -tulpen
ls -al /var/run/exim4/
cat /var/run/exim4/exim.pid
pidof exim4
if pidof exim4; then
echo >&2 "WARN: There are some exim4 processes still running after stopping exim"
fi
fi
fi
;;
esac
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