Hello Joost,
Is there a tool/method to execute multiple lines/commands simultaneously? Like having 3 or 4 run together and when 1 is finished, it will grab the next one in the list?
probably, GNU Parallel is what you are looking for: https://www.gnu.org/software/parallel/parallel.html#examples The tool can handle most variants of batch processing scenarios without the steep learning curve of fully fledged (clustered) job schedulers. Cheers, Björn