if 1

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Pass-through file descriptors between processes

The following example shows how to pass file descriptors between processes using UNIX domain sockets reference: 1) UNIX network programming         2)  /HTTP book.51cto.com/art/200912/168560.htm  recently learned to use UNIX domain sockets to pass

[Go]linux awk command

Original link: http://blog.chinaunix.net/uid-23302288-id-3785105.html Awk is a line processor : Compared to the advantages of screen processing, there is no memory overflow or slow processing problem when processing large files, usually used to

How to minimize _dos/bat when a batch process is started

Batch hide run hidden batch itself Copy Code code as follows: @echo off If "%1" = = "h" goto begin Start Mshta vbscript:createobject ("Wscript.Shell"). Run ("" "%~nx0" "H", 0) (window.close) &&exit : Begin :: The following

PHP Comment Example Tips _php tutorial

Copy CodeThe code is as follows: $a = 1; $b = 2; if (1==1) { $andy = ' Handsome '; } ?> For general comments, use the Copy CodeThe code is as follows: /* $a = 1; $b = 2; */ if (1==1) { $andy = ' Handsome '; } ?> Tune the process, the old to

Linux Shell script programming-detailed explanation of awk commands

Easy to use: Awk: perform operations on a row in a file by itself. Awk-F: '{print $1, $4}': Use ':' to split the row and print the first and fourth fields of the row.     Details: Awk command Introduction   The most basic function of the awk

Introduction to Unix awk commands

Introduction to Unix awk commands The most basic function of the awk language is to browse and extract information based on specified rules in a file or string. Only after awk extracts information can other text operations be performed, A complete

How to Implement static linked list using C language

Before I started, I thought there was no difference between static and dynamic linked lists. I thought about it carefully and found that memory management was a very important topic to be discussed in the original static linked list. The "static"

Linux awk command Details

awk is a row processor: Compared to the advantages of screen processing, there is no memory overflow or slow processing when processing large files, usually used to format text informationThe awk processing process:Each row is processed in turn, and

Losbyday one of the powerful tools under Linux Akw,shell Essentials

Simple to use:Awk: Performs an operation on a single line of the file in solitude.Awk-f: ' {print $1,$4} ': Use ': ' to split the line and print the first fourth field of the line.Detailed Description:awk Command IntroductionThe most basic function

Summary of SQL injection judgment method (continuous update)

http//e.com/1.php?id=1http//e.com/1.php?id=1--SDhttp://e.com/1.php?id=aaahttp//e.com/1.php?id=aaa '--SDhttp://e.com/1.php?id=aaahttp//e.com/1.php?id=aaa "http//e.com/1.php?id=aaa ' | | 'http//e.com/1.php?id=aaa '%2b 'ID=1and1=if(1=2,1,(Select

[Go]linux awk command

awk is a row processor: Compared to the advantages of screen processing, there is no memory overflow or slow processing when processing large files, usually used to format text informationThe awk processing process:Each row is processed in turn, and

Collect Linux machine information.

#!/bin/bash#=======================================================================================#                FILE:     report.sh#              usage:     bash Report.sh#        DESCRIPTION:     Copy bash style guide and coding standard .#     

Linux awk command detailed 2

awk is a row processor: Compared to the advantages of screen processing, there is no memory overflow or slow processing when processing large files, usually used to format text informationThe awk processing process:Each row is processed in turn, and

[Go]linux awk command

Original link: http://blog.chinaunix.net/uid-23302288-id-3785105.htmlawk is a row processor: Compared to the advantages of screen processing, there is no memory overflow or slow processing when processing large files, usually used to format text

[Go]linux awk command

Original link: http://blog.chinaunix.net/uid-23302288-id-3785105.htmlawk is a row processor: Compared to the advantages of screen processing, there is no memory overflow or slow processing when processing large files, usually used to format text

Linux shell script Writing

Hello everyoneThis is a self-reading, learning shell programming, the work of a large number of applications, especially awk, SED, grep-based. Hope to be useful to everyoneYou can see the central location directly."Data"Export

Linux Process Communication-semaphore usage

Linux Process Communication-semaphore usage-Linux general technology-Linux programming and kernel information. The following is a detailed description. I. Related Knowledge Semaphores: an integer; The number of resource entities that tables can be

Simple Analysis of a script Virus

Recently, people in the same office reflected that they were inexplicably infected with viruses. I did not care about the virus. I did not expect one of my own, so I had this post today.In other words, one night we were working in a hurry...

Turn: the Windows batch processing function is very powerful with scripts!

I have been engaged in several video codec quality analyses recently. I need to write several scripts and found that in addition to the powerful functions of Python, basic doscommands are also necessary. So I have read several articles. The

Linux Process Communication-semaphore usage

Title: Linux Process Communication-use semaphores I. Related KnowledgeSemaphores: an integer;The number of resource entities that tables can be used by concurrent processes when the value is greater than or equal to 0;Number of processes waiting for

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