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Yes, all of the processes eventually grab the lock. However, the same process has a very good chance of grabbing the lock every time until it reaches the max tries on the loop. The reason for this...

Great!! I tried your programme and it didn't have any problem with the number it started. Try adding set -x at the top of your script which might give you a clue as to why it's not stopping

The lock file code in your last post is bound to have problems. If two instances of your script both notice that the lock file is missing at the same time, they will both touch the lock file and go...

If it is successful on the first try it should not enter the loop and once it is successful it should exit the loop.


Great ! Try running two of them at the same time. The first should create...

Yes, your for loop will start n concurrent executions of the same script.

The statement you have in red attempts to make a directory. If it is successful, the if should evaluate to true and the...