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Okay, I'll change that then.

EDIT: I fixed the script. It now looks like this:

#!/bin/bash
# deletes lines of a certain range length from a file
# Writing the result to the file is optional....

BTW, what is the practical value of what you're trying to do? I really want to know, because I just wrote a shell script that does what you described, only way better, and I'm wondering how I can...

Try:


sed "/^.\{0,31\}$/d" file


EDIT: Just noticed that the above poster beat me to that answer. Oh, well, it was a good exercise.