#!/bin/bash rm /tmp/biglock* echo #Test task A would acquire one lock again and again in little interval ./test_task.sh A 0.3 & sleep 1 #At the same time, task B would try to acquire the lock as well. ./test_task.sh B 0.5 & #For the original version, task B would essiental fail, because task A do it # quicker and task B, so task B may not have time to execute. But for new # version, since it's ordered by time, then nobody should fail. read end pkill test_task