grep
на сайте с September 13, 2023 00:10
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, which has the same effect: doing a global search with the regular expression and printing all matching lines. grep was originally developed for the Unix operating system, but later available for all Unix-like systems and some others such as OS-9.