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

We often write quick bash scripts and judging by the comments, half of us use bash or a similar shell to pop out quick, useful scripts, and half of us think that’s an abomination, and you should only ...

Jack Wallen shows you a nifty trick for easily starting, stopping, pausing, and resuming your VirtualBox virtual machines on a headless Linux server. There’s a nifty feature that comes with VirtualBox ...

You normally think of a critical section — that is, a piece of a program that excludes other programs from using a resource — as a pretty advanced technique. You certainly don’t often think of them as ...

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I have a RedHat 9.0 system and have set up a shell script that uses /bin/bash for it's execution. I have set up a user for the system that is presented with this script upon login. The script is ...