From [Jacek Wielemborek](https://github.com/d33tah) in 2015 I recently decided to run 40 processes using GNU parallel and I would love to be able to watch their progress using -d, like this: watch 'for pid in `pgrep -f script-name`; do pv --one-shot -d $pid:0; done' Is there any way to make pv print just one line and exit immediately or combine -d with -c?