Question

I’ve searched for a while but i can’t either find an answer or come up with a solution of my own, so I turn to you guys. First question I actually ask here 🙂

I would like to run several instances of the same program, and redirect each of these programs’ standard output to a file that contains that same process’ pid, something like:

my_program > <pid of the instance of my_program that is called in this command>.log

I’m aware that this is not even close of the way to go 😛 I have tinkered around with exec and $PPID but to no avail. My bash-fu is weak 😐 please help me, point me somewhere! Thanks!

Answer 1

You can wrap your program execution into bash script. The bash process will be replaced with your program on exec call. So:

#!/bin/bash
exec my_program > $$.log