![]() Example of grep command | |
Original author(s) | Ken Thompson[1][2] |
---|---|
Developer(s) | AT&T Bell Laboratories |
Initial release | November 1973[1] |
Written in | C |
Operating system | Unix, Unix-like, Plan 9, Inferno, OS-9, MSX-DOS, IBM i |
Platform | Cross-platform |
Type | Command |
grep
is a command-line utility for searching plaintext datasets for lines that match a regular expression. Its name comes from the ed command g/re/p
(global / regular expression search / and print), which has the same effect.[3][4] grep
was originally developed for the Unix operating system, but later available for all Unix-like systems and some others such as OS-9.[5]
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