Perl Punctuation and Sigils: Practical Symbol Reference with Examples
A clear reference to the punctuation marks you see most often in Perl code, including sigils, operators, delimiters, and quote forms. Includes usage tables, example snippets, and a quick decision flow for choosing the right sigil.
Executing External Commands in Perl: system, exec, backticks, and open Explained
Perl provides multiple ways to run external commands, and each one behaves differently. This guide shows when to use system, exec, backticks, or open, with safe patterns for output capture and exit-code handling.
Perl use vs require: Compile-Time and Runtime Module Loading Explained
In Perl, `use` and `require` both load code, but they do it at different times and with different side effects. This guide shows when each is appropriate, how imports work, and patterns that avoid common production bugs.
Perl File Test Operators Explained for DevOps Automation
Perl’s built-in file test operators let you check existence, type, size, permissions, and ownership without external commands. This guide explains the operators, real vs effective ID checks, and production-friendly patterns for automation scripts.
Perl in DevOps: Practical Overview, Use Cases, and Trade-offs
Perl remains a practical language for text-heavy automation, systems glue code, and legacy infrastructure work. This guide explains where Perl fits, how it compares with Bash and Python, and how to get started with real commands.
What is Perl and use cases of Perl?
What is Perl? Perl is a high-level, general-purpose programming language known for its flexibility, ease of use, and powerful text manipulation capabilities. Originally developed by Larry Wall…
What is Perl and How it works? An Overview and Its Use Cases
Hey, this is Ashwani, and in this article I’m going to share some important things about Perl. As you see in the heading everything is clear to…
Introdcution of Perl
What is Perl Perl is a programming language, It’s Object Oriented, simple to learn and very powerful. Perl stand for: “Practical Extraction and Reporting Language”. Perl is…
Remove Control ^M from files
tpatil created the topic: Remove Control ^M from files Single file method perl -pi -e “s/\r//” filename.txt Multiple File Method find . -type f -exec perl -pi…
I need to a perl script
rajeshkumar created the topic: i need to a perl script Hi , There is a file called test.txt what are all the different ways BEGIN: test 1…
The difference between my and local
rajeshkumar created the topic: The difference between my and local There is a subtle difference. In the example below, $::a refers to $a in the ‘global’ namespace….
What is the meaning of rigging?
scmuser created the topic: What is the meaning of rigging? Hi, Could you please tell me meaning of rigging in perl? Rajesh KumarI’m Rajesh Kumar, a DevOps,…
Parenthesis After Module Name And Without Parenths
scmuser created the topic: parenthesis after module name and without parenths What is the difference between having a parenthesis after module name and without parenthsis after module…
Question Regarding to Eval Function
scmuser created the topic: question regarding to eval function I have one question regarding to eval function. I know eval function is use for error checking but…
Find a particular word in a paragraph
scmuser created the topic: Find a particular word in a paragraph Write a Perl script to find a particular word in a paragraph??? Rajesh KumarI’m Rajesh Kumar,…
Create a flat file database using perl
scmuser created the topic: Create a flat file database using perl How to create a flat file database as shown below s.no name age city phone 0…
Find whether a given line of text is starting and
scmuser created the topic: Find whether a given line of text is starting and Write a perl script to find whether a given line of text is…
Use Vs require in perl
scmuser created the topic: use Vs require in perl Hi, Whats difference between “use” and “require” in perl? rajeshkumar replied the topic: Re: use Vs require in…
Spit out warnings on uninitialized variables Perl
scmuser created the topic: Spit out warnings on uninitialized variables Perl How to Spit out warnings on uninitialized variables in Perl? rajeshkumar replied the topic: Re: Spit…
Installing Perl modules
rajeshkumar created the topic: Installing Perl modules Perl modules may be installed using the CPAN module or from source. CPAN method perl -MCPAN -e shell (to get…
Access denied for user ‘ODBC’@’localhost
rajeshkumar created the topic: Access denied for user ‘ODBC’@’localhost I am getting following error while running following command…any help > perl -MCPAN -e “install DBD::mysql”; Error D:\wamp\bin\mysql\MYSQL5~1.36\bin\MYSQLA~1.EXE:…
Perl -MCPAN -e “install DBD::mysql”
rajeshkumar created the topic: perl -MCPAN -e “install DBD::mysql” I am getting following issues while running following command in Windows Machine… perl -MCPAN -e “install DBD::mysql” Error…
Use of use DBI;
scmuser created the topic: Use of use DBI; Hi, why do we use following syntax in perl program. can you please explain it? use DBI; rajeshkumar replied…
Connect to my MySQL database using Perl?
rajeshkumar created the topic: connect to my MySQL database using Perl? #!/usr/bin/perl use DBI; $database = “DBNAME”; $hostname = “DBSERVER”; $port = “3306”; $username = “DBUSERNAME”; $password…
Why we use ‘use strict’ in perl
scmuser created the topic: Why we use ‘use strict’ in perl Hi, Why you should ‘use strict’? what is the significant of “strict” in out module? rajeshkumar…
Why do you program in Perl?
scmuser created the topic: Why do you program in Perl? Why do you program in Perl? What are the advantages of Perl ovber python and other languages?…
Difference between exec and system in perl?
scmuser created the topic: Difference between exec and system in perl? What are the Difference between exec and system in perl? please explain…. rajeshkumar replied the topic:…
Embed perl in a C++ program / Java Program?
scmuser created the topic: embed perl in a C++ program / Java Program? How can I embed perl in a C++ program / Java Program? Any sample…
How to read properties file using perl
scmuser created the topic: How to read properties file using perl Hi, i would like to read properties file using perl…Any sample code or any example? My…
Creating file system info and put into mysql db
rajeshkumar created the topic: Creating file system info and put into mysql db Create a perl script for following task… 1. Read the directory mentioned by users…