Execute scripts or commands in parallel, using BASH.
Can be used stand-alone or butchered into another script.
100 iterations of sleep 1 using 20 parallel workers:
./parallel.sh --iterations 100 --workers 20 sleep 1
To test with random intervals, create a script to sleep for between 2 and 10 seconds:
echo -e '#!/bin/bash\nsleep $((2 + (RANDOM%9)))' > /tmp/testParallel.sh
Then use parallel.sh to invoke it 200 times with 50 workers:
./parallel.sh --iterations 200 --workers 50 /tmp/testParallel.sh