The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
NAME perlsh – one-line perl evaluator with line editing function and variable name completion function SYNOPSIS perlsh DESCRIPTION This program reads input a line, and evaluates it by perl interpreter, and prints the result. If the result is a list value then each value of the list is printed line by line. This program…
NAME perlsec – Perl security DESCRIPTION Perl is designed to make it easy to program securely even when running with extra privileges, like setuid or setgid programs. Unlike most command line shells, which are based on multiple substitution passes on each line of the script, Perl uses a more conventional evaluation scheme with fewer hidden…
NAME perlrun – how to execute the Perl interpreter SYNOPSIS perl [ -sTtuUWX ] [ -hv ] [ -V[:configvar] ] [ -cw ] [ -d[t][:debugger] ] [ -D[number/list] ] [ -pna ] [ -Fpattern ] [ -l[octal] ] [ -0[octal/hexadecimal] ] [ -Idir ] [ -m[–]module ] [ -M[–]‘module…’ ] [ -f ] [ -C [number/list] ] [ -S ] [ -x[dir] ] [ -i[extension] ] [ [-e|-E] ‘command’ ] [ — ] [ programfile ] [ argument ]… DESCRIPTION The normal way to run a Perl program is by making it directly executable, or else by passing the name of the source file as an argument on the command line. (An interactive Perl…
NAME perlriscos – Perl version 5 for RISC OS DESCRIPTION This document gives instructions for building Perl for RISC OS. It is complicated by the need to cross compile. There is a binary version of perl available from <http://www.cp15.org/perl/> which you may wish to use instead of trying to compile it yourself. BUILD You need…
NAME perlretut – Perl regular expressions tutorial DESCRIPTION This page provides a basic tutorial on understanding, creating and using regular expressions in Perl. It serves as a complement to the reference page on regular expressions perlre. Regular expressions are an integral part of the "m//", "s///", "qr//" and "split" operators and so this tutorial also…
NAME perlreref – Perl Regular Expressions Reference DESCRIPTION This is a quick reference to Perl’s regular expressions. For full information see perlre and perlop, as well as the “SEE ALSO” section in this document. OPERATORS "=~" determines to which variable the regex is applied. In its absence, $_ is used. $var =~ /foo/; "!~" determines…
NAME perlrequick – Perl regular expressions quick start DESCRIPTION This page covers the very basics of understanding, creating and using regular expressions (‘regexes’) in Perl. The Guide This page assumes you already know things, like what a “pattern” is, and the basic syntax of using them. If you don’t, see perlretut. Simple word matching The…
NAME perlrepository – Links to current information on the Perl source repository DESCRIPTION Perl’s source code is stored in a Git repository. See perlhack for an explanation of Perl development, including the Super Quick Patch Guide for making and submitting a small patch. See perlgit for detailed information about Perl’s Git repository. (The above documents…
NAME perlreguts – Description of the Perl regular expression engine. DESCRIPTION This document is an attempt to shine some light on the guts of the regex engine and how it works. The regex engine represents a significant chunk of the perl codebase, but is relatively poorly understood. This document is a meagre attempt at addressing…
NAME perlreftut – Mark’s very short tutorial about references DESCRIPTION One of the most important new features in Perl 5 was the capability to manage complicated data structures like multidimensional arrays and nested hashes. To enable these, Perl 5 introduced a feature called references, and using references is the key to managing complicated, structured data…
NAME perlref – Perl references and nested data structures NOTE This is complete documentation about all aspects of references. For a shorter, tutorial introduction to just the essential features, see perlreftut. DESCRIPTION Before release 5 of Perl it was difficult to represent complex data structures, because all references had to be symbolic—and even then it…
NAME perlrecharclass – Perl Regular Expression Character Classes DESCRIPTION The top level documentation about Perl regular expressions is found in perlre. This manual page discusses the syntax and use of character classes in Perl regular expressions. A character class is a way of denoting a set of characters in such a way that one character…
NAME perlrebackslash – Perl Regular Expression Backslash Sequences and Escapes DESCRIPTION The top level documentation about Perl regular expressions is found in perlre. This document describes all backslash and escape sequences. After explaining the role of the backslash, it lists all the sequences that have a special meaning in Perl regular expressions (in alphabetical order),…
NAME perlreapi – Perl regular expression plugin interface DESCRIPTION As of Perl 5.9.5 there is a new interface for plugging and using regular expression engines other than the default one. Each engine is supposed to provide access to a constant structure of the following format: typedef struct regexp_engine { REGEXP *(*comp)(pTHX_ const SV *const pattern,…
NAME perlre – Perl regular expressions DESCRIPTION This page describes the syntax of regular expressions in Perl. If you haven’t used regular expressions before, a tutorial introduction is available in perlretut. If you know just a little about them, a quick-start introduction is available in perlrequick. Except for “The Basics” section, this page assumes you…
NAME perlqnx – Perl version 5 on QNX DESCRIPTION As of perl5.7.2 all tests pass under: QNX 4.24G Watcom 10.6 with Beta/970211.wcc.update.tar.F socket3r.lib Nov21 1996. As of perl5.8.1 there is at least one test still failing. Some tests may complain under known circumstances. See below and hints/qnx.sh for more information. Under QNX 6.2.0 there are…
NAME perlpragma – how to write a user pragma DESCRIPTION A pragma is a module which influences some aspect of the compile time or run time behaviour of Perl, such as "strict" or "warnings". With Perl 5.10 you are no longer limited to the built in pragmata; you can now create user pragmata that modify…
NAME perlport – Writing portable Perl DESCRIPTION Perl runs on numerous operating systems. While most of them share much in common, they also have their own unique features. This document is meant to help you to find out what constitutes portable Perl code. That way once you make a decision to write portably, you know…
NAME perlpolicy – Various and sundry policies and commitments related to the Perl core DESCRIPTION This document is the master document which records all written policies about how the Perl 5 Porters collectively develop and maintain the Perl core. GOVERNANCE Perl 5 Porters Subscribers to perl5-porters (the porters themselves) come in several flavours. Some are…
NAME perlpodstyle – Perl POD style guide DESCRIPTION These are general guidelines for how to write POD documentation for Perl scripts and modules, based on general guidelines for writing good UNIX man pages. All of these guidelines are, of course, optional, but following them will make your documentation more consistent with other documentation on the…