How do I find all files containing specific text on Linux with GREP?

Source: https://stackoverflow.com/questions/16956810/how-do-i-find-all-files-containing-specific-text-on-linux

Do the following:

grep -rnw '/path/to/somewhere/' -e 'pattern'

• -r or -R is recursive,
• -n is line number, and
• -w stands for match the whole word.
• -l (lower-case L) can be added to just give the file name of matching files.
• -i stands for ignore case (optional in your case).

Along with these, --exclude, --include, --exclude-dir flags could be used for efficient searching:

• This will only search through those files which have .c or .h extensions:grep --include=\*.{c,h} -rnw '/path/to/somewhere/' -e "pattern"
• This will exclude searching all the files ending with .o extension:grep --exclude=\*.o -rnw '/path/to/somewhere/' -e "pattern"
• For directories it’s possible to exclude one or more directories using the --exclude-dir parameter. For example, this will exclude the dirs dir1/, dir2/ and all of them matching *.dst/:grep --exclude-dir={dir1,dir2,*.dst} -rnw '/path/to/somewhere/' -e "pattern"

This works very well for me, to achieve almost the same purpose like yours.

For more options check man grep.