OVERVIEW
Perl is a programming language developed by Larry Wall, specially designed for text processing. It stands for Practical Extraction and Report Language. It runs on a variety of platforms, such as Windows, Mac OS, and various versions of UNIX. This tutorial provides a complete understanding of Perl.
Perl Features
Perl takes the best features from other languages, such as C, awk, sed, sh, and BASIC, among others.
Perl database integration interface DBI supports third-party databases including Oracle, Sybase, Postgres, MySQL, and others.
Perl works with HTML, XML, and other mark-up languages.
Perl supports Unicode.
Perl is Y2K compliant.
Perl supports both procedural and object-oriented programming.
GET STARTED
To verify the installation, follow the below instructions
Step 1. Connect to SSH:
Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/.
In the navigation pane, choose Instances.
Select the instance and choose Connect.
Choose SSH Client
Copy the SSH command and paste it into the terminal.
ssh ubuntu@publicIP -i [Path of key pair file]If it shows an access denied message run the following command, then run the above command again to connect via ssh.
chmod 400 [Path of key pair file]Once launched in the Amazon EC2 Service, please connect to the instance via an SSH client using the ec2-user with the key pair associated at launch. Once connected as the ec2-user user, you will be able to sudo to the root user
Step 2. Verify the installation
Follow the steps to verify the Perl installation
1. Login with ssh
2. Type the below command to check the version
perl -vYou will see the responses as shown below.
How to use Perl language in the terminal:
1. After connecting with ssh write the below command:
sudo vi helloworld.pl 2. After that paste the code in the file given below :
#!/usr/bin/perl
use warnings;
print("Hi, this is test script Hello world\n");
3. Run the below command:
perl helloworld.pl4. If you get the Hi, this is test script Hello world in output then your Perl is working properly.
To monitor and assess application functions:-
a. Navigate to your Amazon EC2 console and verify that you're in the correct region.
b. Choose Instances and select your launched instance.
c. Select the server to display your metadata page and choose the Status checks tab at the bottom of the page to review if your status checks passed or failed.
For information about how to use the application, please visit: https://www.tutorialspoint.com/perl/index.htm
For detailed information about managing and requesting increased service please visit: https://docs.aws.amazon.com/general/latest/gr/aws_service_limits.html
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