I have shortcuts to save last (sl) executed command and another to grep that file. alias sl='fc -ln -1 | sed "s/^\s*//" >> ~/.saved_commands.txt' alias

I have shortcuts to save last (sl) executed command and another to grep that file. alias sl='fc -ln -1 | sed "s/^\s*//" >> ~/.saved_commands.txt' alias slg='< ~/.saved_commands.txt grep' You can also add a comment to the command before saving. For ex: $ foo_cmd args #this command does this awesome thing $ sl