Bash: Wait function on multi threading to let only 5 run at a time

Asked Aug 24 '20 at 14:27

Active Aug 24 '20 at 14:52

Viewed 95 times

So i have like 100 test cases

for test in test_list
do
    sh test &
done
wait

But i want 5 to run at a time, rather than all 100 as i end up with brokenpipe errors if i run too many at 1 time.

Is there a way to always have 5 running. So when 1 of the 5 finished, 1 more starts until we complete?

asked Aug 24 '20 at 14:27

Fredz

1

Use gnu-parallel instead. – oguz ismail Aug 24 '20 at 14:46
1

Or `xargs -P`. Or see the many, many duplicates in our knowledgebase. – Charles Duffy Aug 24 '20 at 14:50
1

BTW, none of this is multithreading -- bash doesn't support multithreading at all. Background processes are whole processes, not threads. – Charles Duffy Aug 24 '20 at 14:51

0 Answers0