### What are Regular Expressions?
Regular expressions are a powerful way to search text and documents. Everyone should know how to use regular expressions.
Regular Expressions (aka regex) are used to find and replace words, numbers, and characters in programs such as LibreOffice (Find and Replace), the Thunar File Manager (Rename), and the Linux command line "grep" command, which stands for goto regular expression and print.
See comments to learn how to use regular expressions.
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#RegularExpressions #RegEx #Linux
