Search for a string in all files in a directory Linux

Grep command you can use to search a specified string in all files in the directory path you have given

grep "string to search" /var/*

so this will search string to search in /var/ directory files.

another variation :

find . -type f -exec grep -i "string to find" {} \; -print

or you can use

grep "string to search" *.htm    --> this will search for the string to search in all htm files


There can be more options as always :) try and find more.