NO_WAKE=
# Check required tools
-for t in fping ssh etherwake; do
+for t in fping ssh etherwake lockfile-create; do
if ! command -v "$t" >/dev/null 2>&1; then
echo "$NAME: Required tool \"$t\" missing, aborting!"
exit 3
r=1
else
echo "$NAME: Working on \"$1\" - $(date "+%Y-%m-%d %H:%M:%S")"
- do_rcmd "$1" ; r=$?
- echo "$NAME: Done ($r) - $(date "+%Y-%m-%d %H:%M:%S")"
+ lck="/run/lock/$NAME-$1.lock"
+ if lockfile-create --quiet --use-pid --retry 2 --lock-name "$lck"; then
+ do_rcmd "$1" ; r=$?
+ echo "$NAME: Done ($r) - $(date "+%Y-%m-%d %H:%M:%S")"
+ rm -f "$lck"
+ else
+ echo "$NAME: Failed to acquire lock file, skipping job! ($lck)"
+ r=1
+ fi
fi
[ $r -ne 0 ] && result=1
shift