icon Top 9 categories map      RocketAware > Perl >

$[

Tips: Browse or Search all pages for efficient awareness of Perl functions, operators, and FAQs.



Home

Search Perl pages


Subjects

By activity
Professions, Sciences, Humanities, Business, ...

User Interface
Text-based, GUI, Audio, Video, Keyboards, Mouse, Images,...

Text Strings
Conversions, tests, processing, manipulation,...

Math
Integer, Floating point, Matrix, Statistics, Boolean, ...

Processing
Algorithms, Memory, Process control, Debugging, ...

Stored Data
Data storage, Integrity, Encryption, Compression, ...

Communications
Networks, protocols, Interprocess, Remote, Client Server, ...

Hard World
Timing, Calendar and Clock, Audio, Video, Printer, Controls...

File System
Management, Filtering, File & Directory access, Viewers, ...

    
$[
The index of the first element in an array, and of the first character in a substring. Default is 0, but you could set it to 1 to make Perl behave more like awk (or Fortran) when subscripting and when evaluating the index() and substr() functions. (Mnemonic: [ begins subscripts.)

As of Perl 5, assignment to ``$['' is treated as a compiler directive, and cannot influence the behavior of any other file. Its use is discouraged.

Source: Perl predefined variables
Copyright: Larry Wall, et al.
Next: $PERL_VERSION
$]


Previous: $PROGRAM_NAME
$0




(Corrections, notes, and links courtesy of RocketAware.com)


[Overview Topics]

Up to: PERL




Rapid-Links: Search | About | Comments | Submit Path: RocketAware > Perl > perlvar/_arrayfirst.htm
RocketAware.com is a service of Mib Software
Copyright 2000, Forrest J. Cavalier III. All Rights Reserved.
We welcome submissions and comments