how to find a word in a file in linux code example

Example 1: linux search for line in file

grep -R "keyword" /directory/

Example 2: linux find from file content

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

Example 3: how to find a word in files linux

# this will search all subdirectories for text (no case sensitivity)
grep -inR "your text" .