Grep
| grep | |
|---|---|
Example of grep command | |
| Original author(s) | Ken Thompson |
| Developer(s) | AT&T Bell Laboratories |
| Initial release | November 1973 |
| Written in | C |
| Operating system | Unix, Unix-like, Plan 9, Inferno, OS-9, MSX-DOS, IBM i |
| 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. grep was originally developed for the Unix operating system, but later became available for all Unix-like systems and some others such as OS-9.