- Hi, welcome to Lesson 5.
While working with Linux,
it's important to know how to deal with text files.
Luckily, in this lesson you'll learn all about it.
We start by discussing editors with a strong focus on vi,
which is the editor you should know about
to change the contents of files.
Next we'll discuss the most common tools
for displaying file contents, including more and less,
head and tail, and cat and tac.
Another important tool
that you'll learn about in this lesson is grep,
which is helpful if you're looking for files
that contain specific contents.
At the end of this lesson,
we'll quickly go through all of the commands you've learned,
and there is the end-of-lesson lab as well.