Researching Commands

Solution:

Really, don't run this command. This isn't a joke. Look it up on a search engine and using the manual, and think about what it does.

Another useful tool for researching commands is the apropos command. You can use apropos to find commands relevant to particular keywords.

For example apropos working directory provides a list of commands that somehow work with the current working directory.

apropos is good for refreshing your memory, or for finding new commands to explore!