grep

GNU grep, egrep and fgrep
  https://www.gnu.org/software/grep/
  29
  16 reviews


'grep' is a utility to search for text in files; it can be used from the command line or in scripts. Even if you don't want to use it, other packages on your system probably will.

The GNU family of grep utilities may be the "fastest grep in the west". GNU grep is based on a fast lazy-state deterministic matcher (about twice as fast as stock Unix egrep) hybridized with a Boyer-Moore-Gosper search for a fixed string that eliminates impossible text from being considered by the full regexp matcher without necessarily having to look at every character. The result is typically many times faster than Unix grep or egrep. (Regular expressions containing backreferencing will run more slowly, however.)
Latest reviews
3
Hammer459 9 years ago

This is like review of "Wheels" on "Car"! A Linux ssysten can not exist witout grep

5
lib2know 9 years ago

shows the essence of your text and log files

5
TJGeezer 9 years ago

My scripts depend on it

5
dsgna89 10 years ago

Very useful

5
metamal 11 years ago

Absolutely essential for bash scripting and command line work.

5
chassum 12 years ago

of the absolute essential apps.

5
mitanshugamer 12 years ago

must have..

5
kip- 12 years ago

it should be in every OS as standard

4
blueXrider 12 years ago

Needed

5
RavS 12 years ago

Tried and Tested! If u r CLI champ, u know it's utility!

5
bugz 12 years ago

grep, awk and sed are must have utilities to make powerful searches/substitues possible in console. Also it works well in automation scripts.

5
Steampunk-Nick 12 years ago

needed by every system

5
Germmare 13 years ago

... STATE: NECESSARY ! ...

5
bst2 13 years ago

Vitally important

5
Qruqs 13 years ago

Couldn't live without it.

5
sigma-ml 13 years ago

Indispensable!