> Three questions: > > 1) both cron and at seem to run programs in the background. However there > is no pid when I do a ps aux, so how do I stop a job from running?
if a program is running, it will have a pid > 2) can cron or at jobs be run as one-liners? Eventually I want to write a > perl of sh script (not that I know how, but I want to try) incorporating > one of the two. For cron you need to use an editor to write the command, at > comes with its own prompt. if you need one liners, at is the command to use. > 3) how can I change the default editor for cron. vi is too cumbersome for me. > set and export the variable EDITOR in your .bashrc.