Read e-book online Perl quick reference PDF

By Michael O. Foghlu

The full Perl command reference-the ideal software for locating the syntax for the most typical and imprecise Perl commands.* instructions are taken care of by way of job, category packet, platform or compatibility all in alphabetical order* contains leap tables to steer readers to express pages within the reference* Designed in a bigger trim dimension than conventional quickly References and with a lay-flat binding

Show description

Read or Download Perl quick reference PDF

Similar c# books

Jr. Joseph C. Rattz's LINQ : Language Integrated Query en C# 2008 PDF

LINQ is the venture identify for a collection of extensions to the . internet Framework that offer a prevalent method of querying information from varied information resources. LINQ will most desirable in visible Studio 2008, and may develop into the following must–have ability for . web builders. for additional information approximately LINQ, you could try out the author’s portal at www.

Francesco Sapio, Abdelrahman Saher's Unity 5.x 2D Game Development Blueprints PDF

Key FeaturesExplore the 2nd structure of cohesion five, and the instruments and methods for constructing second gamesDiscover tips to use Unity's second instruments, together with Sprites, physics, and maps, to create various genres of gamesPractical educational at the intermediate and complex improvement options in solidarity five to create 3 fascinating and completely sensible gamesBook DescriptionFlexible, strong, and entire of wealthy features-Unity five is the engine of selection for AAA 2nd and 3D online game improvement.

Additional resources for Perl quick reference

Sample text

Local These variables are always local and do not need to be made local explicitly. The other important special-variable category used in this chapter is File Handle Call. Special variables that implicitly refer to the current active file handle can be explicitly bound to any existing file handle. This facility must be activated by the following call: use FileHandle; This enables calls of the forms FILEHANDLE->method(EXPR) method FILEHANDLE EXPR The relevant method name usually is the full long name of the special variable.

Both the English long names and the use of file handles in references to formats are new features in Perl 5. If you are using Perl 4, you must use the short names and allow format operations to take place in relation to the current active file handle, which you can change by using the select() function. $> Compliance Syntax Short Name $1, $2, ... $ Scope local (read-only) Definition These variables are used to refer back to pattern matches. In any pattern to be matched, sets of parentheses are used to mark subpatterns.

The input-record separator is a newline character. This variable can be set to have no value (in which case entire input files are read in at the same time) or to have other values, as required. htm (14 of 27) [2/17/2007 1:12:32 PM] Special Variables Syntax Short Name $+ Scope local Definition This variable returns the value of the last pattern marked with parentheses. In most contexts, you could simply use $1, $2, and so on rather than $+. When the pattern has a series of sets of parentheses as alternatives to be matched, using $+ is useful.

Download PDF sample

Rated 4.78 of 5 – based on 17 votes
Categories: C

About the Author