Linux administrators cannot live by the GUI alone. That's why we've compiled the most essential Linux commands into this convenient guide. We designed this guide specifically for Linux managers and system administrators as a reference library of only the most useful utilities. By learning a few simple tools, command-line cowards can turn into scripting commandos, getting the most out of Linux by executing kernel and shell commands. Enjoy our guide and be sure to post your own Linux question or browse Linux answers on our IT Knowledge Exchange community.
alias
Alias allows you to substitute a small or more familiar name in place of a long string.
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apt-get
The apt-get program searches for and installs software packages on Debian-based systems.
How to manage software on Ubuntu Server with "aptitude" and "apt-get"
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aspell
GNU Aspell is a free, open source spell checker. It's known for its stellar list of replacements for misspelled words.
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awk, gawk
Awk searches for patterns in a file and processes them. It enables a programmer to write small programs in the form of statements to make changes in text files when certain patterns appear or extract data from those files. This command simplifies a process historically done in C or Pascal languages.
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