One quick caveat before you begin: Many different UNIX-like distributions are currently available, ranging from commercial distributions, such as AIX, to free distributions, such as BSD and Linux. This tutorial focuses on commands and command-line options that are available in just about every distribution; if you find differences in your distributions, check your man pages (as described later).
Log in to the UNIX-like operating system of your choice to
get started. When you log in, you should automatically start in your
user's home directory. The examples use the
Before you work with specific commands, it's important to learn about
man stands for manual; it's a critical tool for UNIX users who
pride themselves on being self-sufficient. Type
to see an explanation of anything you want to learn about. At each
page in this tutorial, you're encouraged to check the man page along
with the instructions.
Try typing the following (note that
$ in this tutorial refers to your command prompt;
in the examples, you should type what you see after the dollar sign):
$ man ls