How to do it...

1. Open a terminal and run the following commands in order to understand the locate command:

$ locate stdio.h
$ sudo touch /usr/filethatlocatedoesntknow.txt /usr/filethatlocatedoesntknow2.txt
$ sudo sh -c 'echo "My dear Watson ol\'boy" > /usr/filethatlocatedoesntknow.txt'
$ locate filethatlocatedoes
$ sudo updatedb
$ locate filethatlocatedoesntknow

2. Next, run the following commands to demonstrate some of the power of find:

$ sudo find ${HOME} -name ".*" -ls
$ sudo find / -type d -name ".git"
$ find ${HOME} -type f \( -name "*.sh" -o -name "*.txt" \)

3. Next, we can chain the find commands together with && and ultimately perform an exec instead of piping the output to another process, command, or script. Try the following:

$ find . -type d -name ".git" && find . -name ".gitignore" && find . -name ".gitmodules"
$ sudo find / -type f -exec grep -Hi 'My dear Watson ol boy' {} +

4. Finally, one of the most common uses of find is to delete files using either the built-in -delete flag or by using exec combined with rm -rf:

$ find ~/emptydir -type d -empty -delete
$ find Linux-Device-Drivers-Development -name ".git*" -exec rm -rf {} \;