Jack Wallen shows how you can create a Linux shell script that requires a password without having to save a password within the script. Image: dennizn/Adobe Stock ...

For Linux users, the command line is a celebrated part of our entire experience. Unlike other popular operating systems, where the command line is a scary proposition for all but the most experienced ...

Imagine that you want to output multiple lines of text in Bash, or any shell script. Maybe it’s for a help string for a particularly convoluted shell script you’re writing. You could have a separate ...

One of the delights in Bash, zsh, or whichever shell tickles your fancy in your OSS distribution of choice, is the ease of which you can use scripts. These can be shell scripts, or use the Perl, ...

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Wicked Cool Shell Scripts: 101 Scripts for Linux, OS X, and Unix Systems by Dave Taylor and Brandon Perry, 2 nd edition, no starch press (2017) is a book that can lift you up a notch in the super Unix ...

Last time, I talked about what's known informally as l33t-speak, a series of letter and letter-pair substitutions that marks the jargon of the hacker elite (or some subset of hacker elite, because I'm ...

Some of the most versatile commands you can run on the Linux command line are those that enable you to pass the output of one command to another by using something called a “pipe”. You can also set up ...

To change a password in Linux through a Bash script, he two scripts that are most important are 'Create Users' and 'Change Passwords Shell' scripts, for the system admin which regularly uses the mail ...

I've been hacking around with some Linux shell scripts for a project that are derived from existing, known good scripts. I'm using Ubuntu on WSL. The original scripts are nested, and a common pattern ...