Linux : find & grep

find /path/to/directory -type f -exec grep -il "theword" {} \;

this command displays the list of files that contain the word "theword" in the directory "directory" and also in its subdirectories

-n, --line-number print line number with output lines
-R, -r, --recursive equivalent to --directories=recurse

A little example:

I am searching for the word alonso in the directory /home/tetsumaki/allons-y

alonso is found on line 2 of the file /home/tetsumaki/allons-y/test.h
on line 5 of the file /home/tetsumaki/allons-y/test/test2.h

Search in the directory:

[tetsumaki@tetsu-arch ~]$ grep -rn "alonso" "/home/tetsumaki/allons-y/" /home/tetsumaki/allons-y/test.h:2:alonso /home/tetsumaki/allons-y/test/test2.h:5:alonso

Or if I am in the directory where I want to search:

[tetsumaki@tetsu-arch allons-y]$ cd ~/allons-y/ [tetsumaki@tetsu-arch allons-y]$ grep -rn "alonso" . ./test.h:2:alonso ./test/test2.h:5:alonso

If I want to search only in files with the ".h" extension:

[tetsumaki@tetsu-arch allons-y]$ grep -rn --include="*.h" "alonso" "/home/tetsumaki/allons-y/" /home/tetsumaki/allons-y/test.h:2:alonso /home/tetsumaki/allons-y/test/test2.h:5:alonso

Hello,

grep -l "first" /home/*

using the -l option

it doesn't work, but only on the "home" directory, not recursively

Hello, I'm looking to search for a specific chain in php files on my server
I've tried many syntaxes, none of which yield results..

find /home | grep -R -l 'expression?param='
find /home -name *.php -print -exec grep -H "expression?param=" {} \;

this one only works in the current local directory
grep -s -R -H 'expression?param=' *.php

in fact, the -l (lowercase L) option does this:
grep -R -l <search_word> <directory>
the -R option allows for recursive searching

 find /home/ | grep first 

--
0x0syscall,

Hello,

man grep

  -H, --with-filename Show the filename for each match.

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