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|
lock() {
if [[ -f "$1" ]]; then
echo "$1 is not a lock directory."
exit 1
fi
if mkdir "$1" &>/dev/null; then
echo "lock $1 created" >&2
else
echo "lock $1 found, waiting for unlock" >&2
while true; do
sleep 2;
if mkdir "$1" &>/dev/null; then
return
fi
done
fi;
}
if [[ "$#" -eq "1" ]]; then
lock "$1"
else
echo "please supply one argument: the lock directory."
exit 1
fi
|
