Chapter 1: Introduction
What's Perl >
Task Examples >
Running Perl >
Variables & Types >
Flow Control >
Some Simple Scripts
Running perl scripts
Before you can run Perl, you have to install it on your
system. If you haven't done so already, go to the Perl installation page for more
instructions. At this stage, you don't have to install a web server and you
should leave that for a later session. Installing Perl should be quite quick
and simple, so go ahead and get it in place. Make sure you reboot before continuing.
For the first part of this course, we'll be running perl scripts in a DOS
window. This means we're going to be typing words in at the dos prompt. Yes
indeed, a command line environment instead of a Windows GUI!
This is good or bad, depending on your point of view.
(I think it's good even though the dos prompt is not a shining example of a good shell.)
Once you've installed perl and rebooted into Windows, bring up a DOS window. It
doesn't matter what directory you are in for now. Just type in:
and you should get back a screenful of
version information from perl. If you get a "bad command or
filename" message, Perl isn't properly installed. See if you can fix
Running your first Perl script: Hello World!
time to feel like you're getting somewhere. You're going to write your first
perl script. Go back to your DOS prompt and this time, make sure you're
working in a directory where you can edit a file or two.
Use notepad or some simple text editor (not MS Word!) to create a file
with this line in it. You can cut and paste it directly from here:
print "hello world\n";
Save the file as "hello.pl" and turn to your DOS session and type:
The screen should show
you've just run your first perl script!
Now you need to learn a bit
more about the language so you can create something more interesting.
Email me your comments!