Now that you've learned how to use filters such as less, sort, and grep, be alert to ways that you can use them to streamline your work. When you perform a system administration task, try to figure out a way to build a script that will make it easier to perform the task the next time.
Filters are likely to be helpful in building such scripts.
Both sort and grep include many more options than could be described in this article. Consult the man pages for information on additional options that may be appropriate to your situation. As you might expect, popular Linux distributions include many filters besides sort and grep. Reformats paragraphs of text. Formats lines for printing.