Grep text recursively in a current directory
The folloing command greps grep_text in a current directory.
$ grep -r "grep_text" .
Grep text recursively in a specific directory
The folloing command greps grep_text in grep_directory directory.
$ grep -r grep_text grep_directory
Grep text recursively and list only file names
The folloing command greps grep_text and list files which includes the text.
$ grep -rl grep_text .