# ag > The Silver Searcher. Like `ack`, but aims to be faster. > More information: . - 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|--files-with-matches]}} {{foo}}` - Find files containing "FOO" case-insensitively, and print only the match, rather than the whole line: `ag {{[-i|--ignore-case]}} {{[-o|--only-matching]}} {{FOO}}` - Find "foo" in files with a name matching "bar": `ag {{foo}} {{[-G|--file-search-regex]}} {{bar}}` - Find files whose contents match a regular expression: `ag '{{^ba(r|z)$}}'` - Find files with a name matching "foo": `ag {{[-g|--filename-pattern]}} {{foo}}`