LSOF restart services for Debian systems

lsof-restart-services

#!/bin/bash
# Author: Liraz Siri <liraz@turnkeylinux.org> 2015 - GPL3 licensed

if [ -z "$1" ] || [ "$1" = "-h" ]; then
cat<<EOF
Syntax: $0 lsof-pattern
Restarts running Debian services that match lsof-pattern (e.g., libc)"

Environment variables:

	DRYRUN=y	If set, don't actually restart services, just echo

Usage example:

	DRYRUN=y $0 libc
	$0 libc

EOF
	exit 1
fi

PAT=$1

BLACKLIST="
screen-cleanup
udev-mtab
udev
"

if [ -n "$DRYRUN" ]; then
	prefix="echo"
else
	prefix=""
fi

which lsof > /dev/null || apt-get -f install lsof

RE_BLACKLIST="$(echo $BLACKLIST |sed 's/ /\\|/g; s|^|^\\(|; s|$|\\)$|')"

lsof | grep "$PAT" | awk '{print $2}' | sort -u |            # detect processes that use libc
  xargs -n 1 -I  {} readlink /proc/{}/exe |                  # lookup executable paths
  xargs -n 1 dpkg -S 2>/dev/null | sed 's/:.*//' | sort -u | # lookup packages
  xargs -n 1 dpkg -L | grep /etc/init.d/ | sed 's|.*/||' |   # lookup services
  grep -v $RE_BLACKLIST | grep -v '.sh' | 				     # filter blacklist
  xargs -n 1 -I {} /bin/sh -c "c='/etc/init.d/{} restart'; echo \$c; [ -z '$DRYRUN' ] && exec \$c"