Replace all files in parallel
find . -type f -print0 | parallel -q0 perl -i -pe 's/FOO BAR/FUBAR/g'
It works similar to
xargs where each line found is send through the pipe and catch by
parallel to be processed.
Also, sometimes you want to run commands with many arguments, for example, an ansible release
cat release my-playbook1.yml -i my_inventory my-playbook2.yml -i my_inventory cat release | parallel --colsep ' ' ansible-playbook # parallel execution happening here
If we don’t add the
--colsep it will treat it as 1 argument which is not really desirable.