Question: Create a command quick reference card that can be used as a reference when working from the Linux command line. Have them add the commands

Create a command quick reference card that can be used as a reference when working from the Linux command line. Have them add the commands listed in this chapter to the card, as well as the most common options associated with these commands. Explain that a set of text wildcards called regular expressions (regexp) is recognized by several text tools and programming languages. Explain the danger of displaying the contents of a binary file to the terminal using a command like cat.

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