How can I use grep to find a word inside a folder?

Question

In Windows, I would have done a search for finding a word inside a folder. Similarly, I want to know if a specific word occurs inside a directory containing many sub-directo

Answer 1

GREP: Global Regular Expression Print/Parser/Processor/Program.
You can use this to search the current directory.
You can specify -R for "recursive", which means the program searches in all subfolders, and their subfolders, and their subfolder's subfolders, etc.

grep -R "your word" .

-n will print the line number, where it matched in the file.
-i will search case-insensitive (capital/non-capital letters).

grep -inR "your regex pattern" .