409: Final

Command: wildcards

wildcards

Description: * will match none or more characters in a search string, whereas ? will match one character. Wildcards themselves are not case sensitive, but the rest of the search query that they are paired with would be.
Example:

$> grep i*m lorem_ipsum.txt
$>
Lorem ipsum dolor sit amet, consectetuer adipiscing
dignissim rutrum quam. Etiam in lacus nec ipsum
ipsum dolor sit amet, consectetuer adipiscing elit.

Example:

$> grep ?psum lorem_ipsum.txt
$>
Lorem ipsum dolor sit amet, consectetuer adipiscing
dignissim rutrum quam. Etiam in lacus nec ipsum
ipsum dolor sit amet, consectetuer adipiscing elit.