Question: I would like to understand the basics of how to write and execute Perl program on Linux OS. Can you explain it with a simple example?
Answer: In this article, let us review very quickly how to write a basic Hello World Perl program and execute *.pl program on Linux or Unix OS.
1. Write a Hello World Perl Program
Create the helloworld.pl program using a Vim editor as shown below.
$ vim helloworld.pl #!/usr/bin/perl # Hello world perl program print "Hello World!";
2. Make sure Perl Interpreter is installed on your system
Make sure perl interpreter is installed on your system as shown below.
$ whereis perl perl: /usr/bin/perl /etc/perl /usr/lib/perl /usr/share/perl /usr/share/man/man1/perl.1.gz $ which perl /usr/bin/perl
3. Execute the Perl Program
You can either execute using “perl helloworld.pl” or “./helloworld.pl”.
$ perl helloworld.pl Hello World! ( or ) $ chmod u+x helloworld.pl $ ./helloworld.pl Hello World!
Note: As perl is an interpreted language, you don’t have the compilation step similar to the C program.
4. Writing and Executing Perl One liner
You can also execute perl from the command line as shown below. This will print Hello World!.
perl -e 'print "Hello World!\n"'
My name is Ramesh Natarajan. I will be posting instruction guides, how-to, troubleshooting tips and tricks on Linux, database, hardware, security and web. My focus is to write articles that will either teach you or help you resolve a problem. Read more about
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I am using windows xp operating system. please tell me how I will write code in perl scripting and how I will execute them.
Hi Sir,
as u posted it is to know how to execute perl program.but i need full perl tutorial.because as a Linux administrator i have to know perl scripting.could you please provide me the best understanding perl tutorial.
if you help me it would be great.
Thanks in advance,
Regards
Dilip
Hi
Ramesh
Am in very critical situation that i have to learn perl,being a zero in programming i have to start learning perl.Please guide me the basic * Should i install linux server to my system * where to type all the script * how to save ,execute *if error comes how can i correct …Please please please give your valuable time to me to guide me …..so that i can start learning perl with confidence.
Hi, Linux already inbuilt Perl python u just need to find details by commands as perl -v – for version n get the command prompt
perl -V for starting perl
vim p.perl
in file
print “hello Perl ”
Close file n execute it by
perl p.perl