How to list files which contain specific string using linux commands

Question

I need to list files from a directory which contains a specific string using linux commands.

Answer 1

Use the command

grep -inr <string> /path/to/directory

The -inr option has three parts:

• i to ignore case sensitivity,
• n to display the line numbers in for each matched result, and
• r to recursively read all files under each directory.