3 lines
418 B
Markdown
3 lines
418 B
Markdown
# Grep
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Grep is a command-line utility for searching plain-text data sets for lines that match a regular expression. Its name comes from the ed command g/re/p (globally search for a regular expression and print matching lines), which has the same effect. grep was originally developed for the Unix operating system like **Linux ([[linux]])**, but later available for all Unix-like systems and some others such as OS-9.
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