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user2413
Asked: 2011-02-18 06:39:37 +0800 CST

How to make bash script run with a latency (i.e. wait 1 sec at each iterations)?

  • 772

I have this bash script;

for (( i = 1 ; i <= 160 ; i++ )); do
  qsub myccomputations"${i}".pbs
done

Basically, I would prefer if there was a 1 second delay between each iteration. The reason is that at each iterations, it sends the program file mycomputation"${i}$.pbs to a core node for solving. The motivation is that solving in this instance involves the use of pseudo random numbers and the RNG I use (R's) uses CPU time as seed.

So how to you ask bash to 

for (( i = 1 ; i <= 160 ; i++ )); do
  wait 1 sec    
  qsub myccomputations"${i}".pbs
done
command-line

2 Answers

  1. Best Answer

    Simply use sleep 1 in Bash.

    for (( i = 1 ; i <= 160 ; i++ )); do
  sleep 1
  qsub myccomputations"${i}".pbs
done
    • 55

  2. If you want to achieve what your topic suggests, you should use 'at'.

    See

          man at

    for more information.

    • 0