Example of how to create a pool of bash commands using xargs

commands.txt

# That's commands.txt file
echo Hello world
echo How are you?
echo EleNaum
echo Almost finished...

testing_xargs.sh

#!/bin/sh
# Sources:
# - https://stackoverflow.com/a/59652795
# - http://coldattic.info/post/7/


MAX_PROCS=7
TIMEOUT=60m

cat commands.txt | xargs -I CMD --max-procs=$MAX_PROCS timeout $TIMEOUT bash -c "CMD"