Comments on: Reading Standard Input in a Bash Shell Script

By: cool

cool — Wed, 22 Oct 2008 22:35:44 +0000

Thanks to you I was able to use my google-fu and find the answer right away.

I’m going to change my script so that if $1 is “”
# ($1 is the first argument passed to the script)
then it reads from /dev/stdin

That should let me cat up a bunch of logfiles and send them all to my parser without saving them as a file first.

firebush — Sat, 28 Jun 2008 15:24:45 +0000

Thanks, this was helpful.

ScottS-M — Mon, 11 Jun 2007 14:13:58 +0000

That’s true. I tend to be lazy and just call bash explicitly instead of using chmod and adding #!/bin/bash to the first line of the script.

Mon, 11 Jun 2007 13:49:00 +0000

It’s unnecessary to call “bash myscript.bash”

Set your script executable:
chmod +x myscript.bash

and then run it as:
cat sourcefile.txt | ./myscript.bash