Shell Aliases

When working on Linux and Unix systems, you’ll often find yourself using long shell commands that you repeat several times per day (or per session). Things like

  • checking on the current resource usage of a system,
  • checking if a process has completed yet, or
  • using a complex group of commands, piped together with special options to give you just the output you want.

Generally, you’ll either use CTRL+R to search for these past commands in the shell’s history. Some of you may even copy useful commands to a special file that you can easily reference. You might even just enter them manually each time you need them, since you’re too lazy to be bothered.

There’s a simple solution that covers all of these cases well: Aliases.

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Linux Command-Line Basics: Two Videos

If you want to be a competent Linux or Unix Administrator, Developer, or IT Person, you need to be completely comfortable on the Linux Command Line. For that reason, I’ve approached the “Linux Command-Line Basics” topic from a few different angles so far.

This post should be a good jumping-off point for anyone who wants to dive in — it’s a one-stop shop for all the free videos I’ve made on the subject of Linux command-line basics and basic Bash shell skills over the last three years. Let’s get started!

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