The wait command man page simply states that it pauses script execution until a specified process ID completes. The man page for the sleep command is a single line stating that it causes a script to pause for specified period of time.
I use it sometimes inside scripts. Sometimes I need to kill a process then restart it. If you script that, the killing might not be finished before it restarts the process. So you put a sleep between them to give the system some time to kill te process.
\"The only truly secure system is one that is powered off, cast in a block of concrete and sealed in a lead-lined room with armed guards - and even then I have my doubts\".....Spaf Everytime I learn a new thing, I discover how ignorant I am.- ... Black Cluster