Linux Command Line Tutorial For Beginners 37 - grep command

grep, egrep, fgrep - print lines matching a pattern

use:
grep [OPTIONS] PATTERN [FILE...]
grep [OPTIONS] [-e PATTERN | -f FILE] [FILE...]

Description:
grep searches the named input FILEs (or standard input if no files are named, or if a single hyphen-minus (-) is given as file name) for lines containing a match to the given PATTERN. By default, grep prints the matching lines.

In addition, two variant programs egrep and fgrep are available. egrep is the same as grep -E. fgrep is the same as grep -F. Direct invocation as either egrep or fgrep is deprecated, but is provided to allow historical applications that rely on them to run unmodified.
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[MissNigeriaInternationalinc]

You are the best tutor I have ever seen on Youtube. Every time, I watch your videos, I understand so easily

[grevierx]

Awesome tutorial series. Thanks for taking the time to make these videos!

[Stevesteacher]

I find grep really useful when searching for something with apt-get eg:

apt-cache search chess | grep -i "chess"

This filters down all the non-important results

[AkshaySawant]

Thanks for all the tutorial. I really appreciate your efforts.

[johnmun]

thank you very much for the best kindly lecture. :))))

[AgriAasan]

Hi...i want to call the codeigniter controller function from command line of linux ..how ?

[tanushakapoor]

What is the code for searching a pattern in script file ..not using grep command on terminator..

[Rock-rkhh]

How can i show directories that do not start with a and do not have b

[k.madhusmita]

Thanks nicely understood, nicely explained 👍

[NechroMaster]

+ProgrammingKnowledge Where is continuos of videos about Node.js for begginers? BTW - Sorry for bad English

[glokazaka]

Great tutorial as always... if you can provide tutorials on R-Programming, it will be very appreciated.

[emanuelmodnicki]

Hello, how to exit from the "cd Desktop/" ?

[shyam]

Not grap pronounciation yar ...it is grep....

[aryamangangele]

~$ In very first line
And "tar"

[freshios]

watch in 1.25 everyone!!! no offense friend:)