While history will bring up a log of past commands, using Cntrl+R will allow you to search through old commands. When I search for “qsub” on insert_computer_cluster, my most recent submission involving “qsub” appears. I can continue going through previous options using Cntrl+R again.

(reverse-i-search)\`qsub\': qsub basher.sh

Pressing an arrow key will bring you out of the search and back to the command prompt, so you can edit the command before executing. As always, Cntrl+C will end the search.