de slash

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awk array count and de----statistics domain access times

1.awk arraysSuppose we have a hotelHotel greenThere are several rooms in the hotel 515,516,517,519 these roomsHotel 515 rooms greenhotel[515] Hotel 516 rooms greenhotel[516] Hotel 517 room greenhotel[517] Hotel 519 Room GREENHOTEL[519]Guests staying

PERL5 the sixth chapter pattern matching

Sixth chapter Pattern Matchingby FlamephoenixFirst, IntroductionSecond, match operatorThird, special characters in the pattern1, character +2, characters [] and [^]3, characters * and?4. Escape character5. Match any letter or number6. Anchor Mode7.

Perl mode matching parameters

I. Introduction The pattern refers to the character of a specific sequence in the string. The backslash contains:/DEF/That is, the pattern def. Its usage is as follows: Use the function split to divide a string into multiple words in a certain mode:

Perl pattern matching

  Chapter 6 pattern matching By flamephoenix I. IntroductionIi. Matching Operators3. Special characters in the Mode1. Character +2. characters [] and [^]3. characters * and?4. escape characters5. match any letter or number6. Anchor Mode7. replace

Perl teaching mode matching

I. Introduction The pattern refers to the character of a specific sequence in the string. The backslash contains:/DEF/That is, the pattern def. Its usage is as follows: Use the function split to divide a string into multiple words in a certain mode:

PERL Regular Expressions Detail _ Application Tips

An introduction to regular expressions in Perl First, Introduction Two, matching operator Iii. special characters in the pattern 1, character + 2, characters [] and [^] 3, character * and? 4, escape character 5. Match any letter or number 6, Anchor

Python file and path operation function Summary

1:os.listdir (path)//path as Directory function is equivalent to executing the dir command in the path directory, returning to the list type Print Os.listdir ('.. ') 2:os.path.walk (Path,visit,arg) Path: Is the directory that will be traversed Visit:

Pattern matching in Perl learning notes _perl

First, Introductionpattern refers to the character of a particular sequence that is searched for in a string, which is included by a backslash:/def/, Mode def. Its usage, such as combining function split, splits a string into multiple words in a

Perl Pattern Matching Parameters Detailed _ Basic Tutorial

First, Introduction Pattern refers to the character of a particular sequence that is searched for in a string, which is included by a backslash:/def/, Mode def. Its usage, such as combining function split, splits a string into multiple words in a

Python file and Path action function summary _python

1:os.listdir (Path)//path as a directory function is equivalent to executing the dir command in the path directory, returning to the list type Print Os.listdir ('.. ') 2:os.path.walk (Path,visit,arg) Path: Is the directory that will be

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