checkservices: better use of systemctl options

[[ -z $no_reload ]] && systemctl --system daemon-reload

# list of running services

# don't use systemctl -s because require v206 of systemd. too young at the moment.

declare -a services

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

services=($(systemctl --no-legend --full -t service|grep running|sed -rn 's/^(.*\.service).*/\1/p'))

# beggar count

declare -a needy=()

for svc in "${services[@]}"; do

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

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

	deleted=$(grep '(deleted)' "/proc/$pid/maps"|sed -nr 's|^\S+ ..x. \S+ \S+ \S+ \s+||p'|sort|uniq)

	if [[ -n $deleted ]]; then

		needy+=("$svc")