I've never used ZSH, so I don't know. My instinct says that if you'd run into any problems, it would be with this line: PROMPT_COMMAND="run_on_prompt_comman

I've never used ZSH, so I don't know. My instinct says that if you'd run into any problems, it would be with this line: PROMPT_COMMAND="run_on_prompt_command" Maybe ZSH has a different API? Again though, I've always just used bash, so you'd have to try it and see.