# minigrepf This is the simple `minigrepf` command line tool from the book "The Rust Programming Language," chapter 12. Usage: ``` $ ls poem.txt minigrepf $ cat poem.txt I'm nobody! Who are you? Are you nobody, too? Then there's a pair of us - don't tell! They'd banish us, you know. How dreary to be somebody! How public, like a frog To tell your name the livelong day To an admiring bog! $ ./minigrepf to poem.txt Are you nobody, too? How dreary to be somebody! $ IGNORE_CASE=1 ./minigrepf to poem.txt Are you nobody, too? How dreary to be somebody! To tell your name the livelong day To an admiring bog! ```