grep multiple words

[mister_v]

Hi,

is there a way to use grep to check for more than 1 word?
Like both for left and right
grep right AND left

[chris]

grep has an -E option (--extended-regexp)
This allows to us regular expressions.

Code: Select all

grep -E 'right|left' name_of_file.txt

You can check for more than 2:

Code: Select all

grep -E 'right|left|up|down' name_of_file.txt