What Does Global-Regular-Expression-Print (GREP) Mean?
Global regular expression and print (GREP) is a command line text search utility used in Unix. The “grep” command searches files or standard input for lines that match a given regular expression. It then prints the matching lines to the program’s standard output.
Techopedia Explains Global-Regular-Expression-Print (GREP)
The grep command allows a user to search one or more files for lines that contain a pattern.