ag

The Silver Searcher. Like ack, but aims to be faster.

• Find files containing "foo", and print the line matches in context:

ag {foo}

• Find files containing "foo" in a specific directory:

ag {foo} {path/to/directory}

• Find files containing "foo", but only list the filenames:

ag -l {foo}

• Find files containing "FOO" case-insensitively, and print only the match, rather than the whole line:

ag -i -o {FOO}

• Find "foo" in files with a name matching "bar":

ag {foo} -G {bar}

• Find files whose contents match a regular expression:

ag '{^ba(r|z)$}'

• Find files with a name matching "foo":

ag -g {foo}

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