Jack Wallen shows how you can create a Linux shell script that requires a password without having to save a password within the script.

To avoid that problem, you'll want to set -o noclobber in scripts or, better, for your login shell, and let it be inherited by subshells, including those that run your shell scripts.

More than just writing help scripts, here documents are useful any time that you want to enter multiple lines and have them piped to a command. We use them most often from the shell directly.

Posted in Hackaday Columns, Linux Hacks, Skills, Slider Tagged bash, bashdb, debugging, Linux Fu, shell script ← A Tree Of LEDs That Blows Out Like A Candle ...

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