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Manually convert Nginx logs Nginx logs are an undiscovered treasure for most people. Sum up previous experiences in a log analysis system and share with you the manual analysis method of Nginx logs. Nginx log configurations include access_log and

MySQL Union table query script:#!/bin/shkkmailmysqlpass=$ (cat /usr/local/kk-mail/config/custom.conf | grep -w  "Pass"  | awk -f " "   ' {print  $NF} ')/usr/local/kk-mail/service/mysql/bin/mysql -u  kkmail -p$kkmailmysqlpass kkmail -e 

Branching structureJava provides two common branch control structures: The IF statement and the switch statement.If statementThe IF statement uses a Boolean or boolean expression (the result of the expression is a Boolean value), and the IF

Question: There are 12 table tennis balls, one of which is out of specification, but I do not know whether it is light or heavy. It is required that the ball be identified three times in Tianping.   Method: Each ball is marked with a number ranging

Awk and awk commands Awk usage: Move file: ls-lrt | awk '{if (substr ($20111029, 8) = '000000' & substr ($, 26, 3) = 'unl ') print "mv" $8 "/home/etl/data/interface;"} '| ksh Sum: awk '{sum + = $1} END {print sum }' Delete a file: ls-lrt | awk '{if (

Source: http://blog.csdn.net/blackbillow/archive/2009/01/21/3847425.aspx   Awk processing text Summary-alex. Wang As a technical support project, we often encounter the need to process text files. No matter what database can finally be imported into

Common threads: Awk by example, Part 3 String functions and...Check? Summary: In the last part of the awk series, Daniel describes important string functions of awk and shows you how to write a complete check Settlement Program from the beginning.

Detailed description of awk Regular Expressions and built-in function instances: 1. Fuzzy match: awk '{if ($3 ~ /97/) Print $0} 'data. F: print the row if the third item contains "97" Awk '{if ($4 !~ /Ufcx/) Print $0} 'data. F: print if the third

awk regular Expressions and built-in function examples are detailed: 1, Fuzzy matching: Copy Code code as follows: awk ' {if ($3~/97/) print $} ' DATA.F: Print the line if "97" is included in the third item awk ' {if ($4!~/ufcx/)

1. Problem Description Divide 2010 into the sum of several non-identical positive integers to maximize the product of these non-identical positive integers.   2. Key Points of Design After generalization, the specified positive integer N is divided

Linux Command Learning 1 (awk, grep), awkgrep 1. Write AWK internal code (for better understanding) BEGIN{size=0}{ if($5>4096){ size=size+$5; printf("%-10i%s\n",$5,$9)}}END{print "size is",size/1024/1024} 2. Remove the carriage return and

Article Title: monit, a tool for linux system monitoring. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open

Rookie one, in order to observe the differences, specifically run the following statements1 /*Read the procedure to answer the question,2 false corresponding value of 1.bool type? True ?3 2. Non-0 integers correspond to bool type? What about 0? 4 */

1. determine disk space usage df-h | grep-vFile | sed's/% // G' | awk '{if ($5 & gt; 80) print "used space exceeds 80%:", $6} 'or #! /Bin/bash 1. Determine the disk space usedDf-h | grep-v File | sed's/% // G' | awk '{if ($5> 80) print "The

Common Linux commands & usage tips and common linux commands # Viewing operating system information # Command:Cat/etc/issue Comments: view the linux release version, which is applicable to suse, rethat, and centos. Command:Cat/proc/version Comments:

Processing text is awk's strength. No matter how fast the performance is, it is amazing. here is a brief introduction. Copy codeThe code is as follows:[Chengmo @ localhost ~] $ Awk 'In in {While ("netstat-an" | getline ){If ($5 ~ /[1-255]/){Split ($5

Today did two two fork tree topic, quite simple, without debugging, directly on the submission box to complete the submission, directly passed.The first topic is to seek the common ancestor of the binary lookup tree, because it is sort, so it is

The most serious mistake is how to judge whether a certain person is 1: use instead of use &&. I have been calling it for a long time. Ah .. For more information, seeCode: Int.tar.gz // Interrupt. c# Include "S3C2440. H" Void eint_handle (){//

1. Place string strings at the frontTo prevent accidental NullPointerException anomalies, we usually put string on the left side of the Equals () function to implement a string comparison, as in the following code:rmal; line-height:20px; Font-family:

How to create a custom filter using AngularJS This article mainly introduces how to use AngularJS to create custom filters. AngularJS is a very popular JavaScript library. For more information, see Angularjs filter is one of the great features of