postrm is in mail-stack-delivery 1:2.2.9-1ubuntu2.
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 | #!/bin/sh
set -e
POSTFIX_BCKFILE="/var/backups/mail-stack-delivery/main.cf-backup"
PATH=/usr/sbin:$PATH
export PATH
if [ "$1" = "remove" -o "$1" = "purge" ]; then
# Restore postfix configuration
if [ "$1" = "remove" ]; then
if which postconf >/dev/null && [ -f "${POSTFIX_BCKFILE}" ]; then
while read line; do
postconf -e "$line"
done < "${POSTFIX_BCKFILE}"
rm -f "${POSTFIX_BCKFILE}"
fi
fi
if [ -x "/etc/init.d/dovecot" ]; then
if [ -x /usr/sbin/invoke-rc.d ]; then
invoke-rc.d dovecot restart
else
service dovecot restart
fi
fi
if [ -x "/etc/init.d/postfix" ]; then
if [ -x /usr/sbin/invoke-rc.d ]; then
invoke-rc.d postfix restart
else
service postfix restart
fi
fi
fi
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