The echo command is simple, except when it isn't. Here's a look at the basic command along with some of the more challenging things it can do.
Since 2004, October is National Cybersecurity Awareness Month. Here's a review of what that means, plus a list of open-source and free cybersecurity tools to consider.
The fortune command might be more versatile than you realize.
The curl and the wget commands make it easy to download content from web sites.
Linux provides a lot of handy commands for manipulating text files. This post explains how to use a collection of them.
The Linux comm command makes it easy to compare a couple text files and determine if they both contain the same lines -- whether the file contents are sorted or not.
There are quite a few ways to increment and decrement numeric variables in bash. This post examines the many ways you can do this.
With a handful of commands and a trick or two, you can move around the Linux file system with ease and never get lost.
The more command on Linux may have a lot more options than you know and use.
The history command on Linux can be used to display and rerun commands that you've used, and it can also help you hide commands that you don't want remembered.