prerm is in ejabberd 2.1.10-2ubuntu1.
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 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | #! /bin/sh
# prerm script for ejabberd
#
# see: dh_installdeb(1)
set -e
# summary of how this script can be called:
#        * <prerm> `remove'
#        * <old-prerm> `upgrade' <new-version>
#        * <new-prerm> `failed-upgrade' <old-version>
#        * <conflictor's-prerm> `remove' `in-favour' <package> <new-version>
#        * <deconfigured's-prerm> `deconfigure' `in-favour'
#          <package-being-installed> <version> `removing'
#          <conflicting-package> <version>
# for details, see /usr/doc/packaging-manual/
case "$1" in
    remove|upgrade)
	if ejabberdctl status >/dev/null ; then
	    # Use timestamp to make database restoring easier
	    TIME=$(date +%Y-%m-%dT%H:%M:%S)
	    BACKUPDIR=$(mktemp -d -p /var/backups/ ejabberd-$TIME.XXXXXX)
	    chown ejabberd:ejabberd $BACKUPDIR
	    BACKUP=$BACKUPDIR/ejabberd-database
	    ejabberdctl backup $BACKUP
	    # Change ownership to root:root because ejabberd user might be
	    # removed on package removal.
	    chown -R root:root $BACKUPDIR
	    chmod 700 $BACKUPDIR
	    echo
	    echo The ejabberd database has been backed up to $BACKUP.
	    echo
	fi
    ;;
    deconfigure)
    ;;
    failed-upgrade)
    ;;
    *)
	echo "prerm called with unknown argument \`$1'" >&2
	exit 1
    ;;
esac
# Automatically added by dh_installinit
if [ -x "/etc/init.d/ejabberd" ]; then
	invoke-rc.d ejabberd stop || exit $?
fi
# End automatically added section
exit 0
 |