Searching multiple patterns (words) with ack?

Question

I want to search multiple patterns in a directory containing recursive directories and files.

I know command for

Answer 1

For ag, as of verion 0.19.2 the default is to search in directories and files recursively.

To search for multiple patterns, you can use similiar syntax as ack

ag 'pattern1|pattern2'

will search for both pattern1 and pattern2.

In case you don't want to search recursively, you can set the search depth to 1 by the switch --depth NUM

Therefore,

ag 'pattern1|pattern2' --depth 1

will only search in the current directory for both patterns.