What Is Grep Command In Unix?
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Grep is a command-line utility for searching plain-text data sets for lines matching a regular expression. It was originally developed for Unix-based systems, but is now available on Linux, Mac OS, and Windows operating systems. The name stands for “global regular expression print,” indicating its functionality. Grep searches for lines of text that match a given pattern and prints them to the terminal. It is commonly used in shell scripts for various tasks, such as searching for a given string in a log file or checking configuration files for specific entries.