What is so Interesting in PERL???
PERL, An Overview
A high level programming language designed especially for text processing including system administration, network programming, GUI development and more. The name is expanded as practical extraction and report language. The language is intended to be practical, easy to use, efficient, and complete and supports both procedural and object-oriented programming. For beginners to help them understand prior exposure to C programming and UNIX shell. It provide powerful text processing facilities and also Perl borrow features from other languages
PERL works with HTML, XML and other mark-up languages and it can be easily installed in Unix OS and MAC OS. It is also one of the popular languages and it has regular Expression, flexibility, portability. It gives the best performance when compared to all other languages. They are automatic memory management, dynamic typing, introspection, etc. Without a compilation stage and intermediate representation Perl can able to interpret language (which means that code can run as it is). Perl has many features that ease the task of the programmer at the expense of greater CPU and memory
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PERL, the Glue language
- Perl Scripting is always written on the glue code.
- The main purpose of glue code is connecting the system components
- The glue code is written on the Glue Languages
- Data munging is the process of converting raw data materials to the specified formats .It is also called as data wrangling.
- Short programs called one liner programs can be entered and run on a single command line.
State of onion
State of onion is the name for wall’s yearly keynote –style summaries on the progress of Perl and its community.
- Perl “golf “is the pastime of reducing number of characters used in Perl program.
- It cannot be parsed by lexical analyser and YACC.
Perl has been referred to as “line noise” by some programmers who claim its syntax makes it a write only language. It can be avoided by coding with proper care. A number of tools are being used such as Active Perl, Apache mod perl.
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