How do I find files containing a specific text on Linux systems?

The easiest way is via your favourite terminal app (aka the CLI):

• Navigate into the directory you want to search
• Enter

  grep -iRl "[text string]" .

The output will be a list of files (if any) containing the exact [text string] you specified.

To clarify the ‘-iRl’:

• i: ignore text case
• R: recursive. search the current folder, and all subdirectories
• l: return file names instead of sniplets of code