perl bible

Regular Expressions (Regular Expression, abbreviated as Regexp,regex or REGXP), also known as regular expressions, regular representations or regular expressions, or formal representations or regular representations, refer to a To describe or match a sequence of strings that match a certain syntactic rule. In many text editors or other tools, regular expressions are often used to retrieve and/or replace text content that conforms to a pattern. Many programming languages support the use of regula

Author: A Hui http: farmerluo. googlecode. how to install comfilescheck_redis.pl: When the script uses the perl Redis database, you must first install this: # perl-MCPAN-eshell # installRediswgethttp: farmerluo. googlecode. comfilescheck_redis.plcpcheck_redis.p Author: A HuiHttp: // faRmErluo.googlecode.com/FileS/check_rEdIs. plThis section describes how to install:The script uses the

Configure cdperl-5.8.8./Configure-demakemaketestmakeinstall Several Notes: 1-de is the configuration parameter, meaning the default configuration; 2 here there is a step If you want to use perlto analyze the timeline and exceldata in ora 8.0, download perl-5.8.tar.bz2 from chinaunix, Tar jxvf perl-5.8.8.tar.bz2Cd perl-5.8.8./Configure-deMakeMake testMake instal

perl directory. Installation: 1. Run the "cmd" command, enter the MS-DOS, and check whether Perl is properly installed under the EG folder of the Perl installation directory: Cd c: \ Perl \ Eg Run Perl example. pl in this directory. If "hellofrom ActivePerl!" is displayed

$ Nr: current row number of the file handle read before3. $/and $ RS: the input record delimiter. The default Delimiter is a new line character. If you use the UNDEF variable, it will be read to the end of the file.4. $, $ OFS: Output domain separator.5. $ \ and $ ors: Output record Separator6. $: The line break character. The default value is "\ n -".7. $! : The numeric value of this variable is the value of errno, and the string value is the corresponding system error string8. $ @: error mess

Name Conflict issues If you use require in SUM2.PM to import a code file SUM1.PM: #!/usr/bin/env perl use strict; use warnings; use 5.010; require '/perlapp/sum1.pm'; sub sum { say "sum2: sum()"; } 1; If there is also a sum subroutine in sum1.pm: #!/usr/bin/env perl use strict; use warnings; use 5.010; sub sum { say "sum1: sum()"; } 1; Then, when running SUM2.PM, the warning subr

develop a unified indentation specification is a truly operable system.Introduction to several open-source code beautification tools Tool Name Applicable Language Introduction Installation/Use Indent C Indent is synonymous with code beautification tools Indent is a standard tool attached to GCC,Indent [Options] [input-files]Indent [Options] [Single-Input-file] [-O output-file] Perltidy

Perl Common function set 2 I. Process processing functions1. Process startup FunctionFunction Name evalCall the syntax eval_r (string)The description regards string as a Perl statement execution.After the command is correctly executed, the system variable $ @ is an empty string. If an error occurs, $ @ is the error message.Example $ print = "Print (/" Hello, world // n /");";Eval_r ($ print );Outpu

Use cpan to install Net: SSH: Perl:Cpan> install Net: SSH: Perl Some problems encountered during this period are recorded here for future reference. Because cpan is dependent on other software, the software version must not be too low, so upgrade the two modules first: Copy codeThe Code is as follows: cpan> upgrade Module: Build Cpan> upgrade ExtUtils: Install Math: BigInt:Math: BigInt: couldn't load specified math lib (s), fallback to Math: BigInt :

1) The default INC is as follows: Copy codeThe Code is as follows: @ INC: C:/Perl/site/lib C:/Perl/lib 2) set the environment variable PERL5LIB to add it to INC. For example: Set perl5lib = c: \ perllibs After perl5lib is set, Copy codeThe Code is as follows: % ENV: PERL5LIB = "c: \ perllibs" @ INC: C: \ perllibs C:/Perl/site/lib C:/

1. Perl "glue", which can combine various applications or code in various languages.Perl can write common scripts, cgi Modules can be used to write Web applications, and DBI can be used to access various databases.In addition, Perl can stick applications of various levels together to provide more powerful functions. 2.The front-end is a website Web application. The underlying or backend is written in C, C +

v\:* {behavior:url(#default#VML);}o\:* {behavior:url(#default#VML);}w\:* {behavior:url(#default#VML);}.shape {behavior:url(#default#VML);} Normal 0 false 7.8 磅 0 2 false false false EN-US ZH-CN X-NONE /* Style Definitions */ table.MsoNormalTable{mso-style-parent:"";font-size:10.5pt;"Calibri","sans-serif";mso-bidi-"Times New Roman";} Perl