How to run nohup and write its pid file in a single bash statement

Question

I want to run my script in background and then write its pid file. I am using nohup to do this.

This is what i came up with,

nohup ./myprogram.sh > /d         


        

Answer 1

You already have one ampersand after the redirect which puts your script in background. Therefore you only need to type the desired command after that ampersand, not prefixed by anything else:

nohup ./myprogram.sh > /dev/null 2>&1 & echo $! > run.pid