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Such programs are called "scripts". In this regard, perl is considered to be a scripting language. Typical operations performed by shell scripts include program execution, printing text, and file manipulation (copying, renaming, deleting, etc.). Being an interpreted language, perl has the following advantages: Platform independence
The structure of the Perl programming language encompasses both the syntactical rules of the language and the general ways in which programs are organized. Perl's design philosophy is expressed in the commonly cited motto "there's more than one way to do it".
Wall developed the Perl interpreter and language while working for System Development Corporation, which later became part of Burroughs and then Unisys. [5] He is the co-author of Programming Perl (often referred to as the Camel Book and published by O'Reilly), which is the definitive resource for Perl programmers; and edited the Perl Cookbook .
The Artistic License – The original Artistic License 1.0, the one which is still used by Perl and CPAN; They use a disjunction of the Artistic License 1.0 and the GNU GPL for Perl 5 and above. The Clarified Artistic License; Version 2.0 The Artistic License 2.0 – It's e.g. used by Parrot. 2.0 revision RFC process; Prominent uses
Learning Perl, also known as the llama book, [1] is a tutorial book for the Perl programming language, and is published by O'Reilly Media. The first edition (1993) was authored solely by Randal L. Schwartz , and covered Perl 4.
Randal L. Schwartz (born November 22, 1961), also known as merlyn, is an American author, system administrator and programming consultant.He has written several books on the Perl programming language, and plays a promotional role within the Perl community.
On Apache, mod_perl can help with performance considerably, though its use might be an issue because it can be unsafe to share multiple applications under mod_perl. Since early 2008, Catalyst applications can also be deployed using the HTTP::Prefork engine [ 8 ] which provides for the deployment of high performance Catalyst applications without ...
Perl provides three loop control keywords that all accept an optional loop label as an argument. If no label is specified, the keywords act on the innermost loop. Within nested loops, the use of labels enables control to move from an inner loop to an outer one, or out of the outer loop altogether.