tldr/pages/common/ack.md

ack

A search tool like grep, optimized for programmers.

• Find files containing "foo":

ack {{foo}}

• Find files of a specific type:

ack --ruby {{foo}}

• Count the total number of matches for the term "foo":

ack -ch {{foo}}

• Show the file names containing "foo" and number of matches in each file:

ack -cl {{foo}}

• List all valid types:

ack --help=types