Shell

Flexible combination of Linux/unix shell and SQL variable transfer, greatly improve the efficiency of the DBA, this article for Linux/unix Shell SQL passed between the variables given a few simple examples for reference.Linux/unix cut with Sql,ramn

The shell is the shell of the operating system, a command interface for users to use the operating system, and a bridge between the user and the operating system kernel. Shell is commonly known as shell. Refers to the software that provides the

#!/bin/Bash#if[$1-eq NULL]; Then# Echo "Please input params1!"# exit#fi#if[$2-eq NULL]; Then# Echo "Please input params2!"# exit#fi# type, $1{SCP,SSH}, SRC $2, DST $3User=Hadoopif[" $"!=""-A" $"!="SCP"] ; ThenUser=$3fiif["$4"!=""] ; ThenIPList=$4

Learn a bash script today and see that there is a: bin= ' dirname '(dirname filename is the directory where the file is exported, and $ is the file name of the bash file, which is generally used in bash to enter the directory where the script is

[Email protected] study]#Cat fileZhang San languageBayiZhang San MathematicsBayiJohn Doe Language theJohn Doe Mathematics -Harry LanguageBayiHarry Mathematics -Harry English -How to implement for the following sort??? Bayi Bayi the -

The file file2 content is as follows:0 Qwert1 ASDFGHJK2 ASDJKL2 zxcvbn3 Dfghjkll4 222224 TYUIOP4 BNMMake the first column equal to one row, not the first column, that is, the following format:22222;tyuiop;bnmQwertAsdfghjkAsdjkl;zxcvbnDfghjkllThe

Stop it:#!/bin/bashPid= ' Ps-ef|grep/opt/lampp|grep-v Grep|awk ' {print $} ' |wc-l 'B=0If [$pid-gt $b]ThenPs-ef|grep/opt/lampp|grep-v Grep|awk ' {print $} ' |xargs kill-9echo "LAMMP has stopped!"Elseecho "LAMMP is not running!"FiStart:#!/bin/bashPid=

1. Exclude portions of files from disk usage statisticsDu--exclude "*.iso" dir2. Find the maximum of 10 files in a specified directoryFind-type f-exec du-k {} \ |sort-nrk 1 |head-n 103. List the maximum 10 commands for the current systemCat.

Software Name: Upx3.03+upolyx.5 Shell v1.0 Chinese Green Editionsoftware Category: Chinese softwareOperating Environment: Windowssoftware language: Simplified ChineseLicensing method: free versionFile Size:635 KBSoftware level:Finishing Time:2012-10-

The first thing to know is how to play color ball: 6 red balls (1~33) and a Blue ball (1~16) to choose a so-called 6+1To generate 6 random numbers between 1~33 and cannot be equal, this is key if you use traditional judging methods (the first with

See the Shell function notation for reference/etc/init.d/functions printing information can be called, action functionLocal variable use plus local definitionGlobal variables don't add anythingNeed to execute the life using the anti-quote 'Strings

#!/bin/bash############################### #FileName: Backuplogtimer.SH#Function: Scheduled backup log file #version:0.1#Authon: xueya#date:2014.06. -############################### #获取当前路径path=`pwd`Echo "current1 path: ${path}"#循环执行 while[[1-eq1 ]]

Analysis: Randomly generate 10 numbers? Generate a random number, here with the random function, I define the generated 10 numbers as an array of arrays, the initial value of the definition max is array[0] use for loop to compare with each element's

What is a shell?The shell itself is a C language program, it is the user use Unix/linux Bridge, most of the user's work is done through the shellThe shell has two ways of executing commands:Interactive (Interactive): Explains the execution of a user'

Memory utilization as above = "-/+buffers/cache:used"/"mem:total" = 6293404/16333656For the free command, the following formula is available:Total = used + Free;(-buffers/cache) used = mem:used-mem:buffers-mem:cached;(-buffers/cache) used=

First occupy the pit, back to complement the perfect ha#!/bin/bash# program:# This program was used to stop Tomcat.# History:# 2016/09/11 XH First releasePid= ' Ps-ef|grep tomcat|grep-v Grep|awk ' {print $} 'if [$pid]ThenEcho ' Tomcat is already

This article is part of the Linux Shell Series tutorial (17), more Linux shell tutorials: Linux Shell Tutorials Through file inclusion, you can reference the contents of other files, or you can separate complex content to make the program

The first approach is to use CMP for comparison[Email protected] bo]#ls1. html2. html3. html4. html5. html6. html7. html8. html9. htmlCat.SH[email protected] bo]#Cat Cat.SH#!/bin/bash[! -f/root/wyb/bo/Cat. log] &&Cat*.html >/root/wyb/bo/Cat. LogCat*.

Requires the target machine to have the expect command installedDivided into five files config.ini (config file), id_ras.pub (public key), read.sh (a function for reading the configuration file), test.sh (execution file), run.sh (remote run script)

|  Copyright Notice: This article for Bo Master original article, without Bo Master permission not reproduced.Hill sort, is a narrowing incremental sort. It is sorted according to the step size, different steps may produce different sequences, but