checkservices: Improve UI

(( $UID != 0 )) && echo 'You need to be root' && exit 1

usage() {

	echo "usage ${0##*/} [options]"

	echo 'options:'

	echo '   -h: this help' >&2

	echo '   -r: restart services' >&2

	echo '   -l: list services' >&2

	echo '   -R: reload services' >&2

	echo "   -n: don't call systemd daemon-reload" >&2

	exit 1

}

while getopts 'hrlRn' opt; do

	case $opt in

		r) systemd_cmd='restart';;

		R) systemd_cmd='reload';;

		n) daemon_reload=false;;

		l) list=true;;

		*) usage;;

	esac

done

shift $((OPTIND - 1));

(( $# > 0 )) && usage

[[ -n "$systemd_cmd" || -n "$list" ]] || usage

[[ $daemon_reload ]] || systemctl --system daemon-reload

declare -a services

services=($(systemctl -t service --full|grep \.service|grep running|sed -rn 's/^(.*\.service).*/\1/p'))

	pid=$(systemctl show "$svc"|sed -nr 's/^MainPID=(.*)/\1/p')

	if readlink "/proc/$pid/exe"|grep -q '(deleted)'; then

		echo systemctl restart "$svc"

		[[ $1 == '-f' ]] && systemctl restart "$svc"

		[[ $systemd_cmd ]] && systemctl "$systemd_cmd" "$svc"

	fi

done

[[ -t 2 && $1 != '-f' ]] && echo 'Use -f to execute' >&2 || :