Shell

Ecshop known as the largest open-source online shop system, the official introduction of it: "Ecshop online shop system is a set of free open-source web store software, no matter in stability, code optimization, operating efficiency, load capacity,

This article directory:1.1-Bar expressionUsage notes for 1.2 test and []1.3 [[]]1.4 Usage RecommendationsTest can be used for testing expressions, including: string comparisons, arithmetic comparisons, file existence, attributes, types, and so on.

Handling strings in shell scripts1, ${#变量名}Function: Returns the length of a string# foo= "This is a test"# echo ${#foo}//Returns the length of the string foo142. ${variable name: offset:length}Function: Intercepts the string, length specifies the

In the morning test script, accidentally in this article "git–setting up a remote repository and doing a initial push" see a fun thing about Git, recorded here.Add the following in the ~/.BASHRC, as prompted by the article, to let the prompt display

If we define a variable as:File=/dir1/dir2/dir3/my.file.txtCan be replaced with ${} to get different values:${file#*/}: Delete the first/its left string: dir1/dir2/dir3/my.file.txt${file##*/}: Remove the last/and left string: my.file.txt${file#*.}  :

In a shell script, the case of integer self-increment is often involved in a while or for loop, and the following is a list of possible ways " Way One "declare-i to declare an integer variable [Email protected]:~# declare-i x=1

Write a script:1. Add 10 users user1 to User10, password with user name, but only if the user does not exist to add;#!/bin/bash# forIinch{1..Ten}; Do if!IDUser$i &>/dev/NULL; ThenUseradd user$iEcho "user$i"|passwd--stdin user$iElse Echo

Think of a long time not updated blog, today in the group to see the discussion about shell script encryption things.Think about it too, we are writing scripts sometimes configure the relevant account and password things, so as long as the

Shell:m3u8-->ts Requirement: Known bulk m3u8 uri for full TS file uri #由于sed不支持文本替换, generate temporary files test_file#curl -s  ignore the default output as follows #  % total    %  Received % Xferd  Average Speed   Time    

shell Script Combat----One-click Deployment LNMP ArchitectureLNMP uses the shell to deploy, directly on the topic, first needs to prepare the package files, which I named here as Zhunbei files.650) this.width=650; "Src="

#!/bin/bashread-t 30-p "input name:" Nameread-t 30-p "input number:" num #输入要批量添加的用户数量并将变量赋给numread-t 30-p "input PA ssWOrd: "passif[-N" $name "-a-n" $num "-a-n" $pass "] #判断都不为空theny =$ (echo $num | Sed ' s/^[0-9]//g ') #如果 $num contains 0-9, then

#!/bin/bash################################################################################# Filename:upgrade_ Project.SH# Summary: Project Upgrade Script # LICENSE:GPL # Version:1.0# Author:jet bi# Email:1207501666@qq. com# Date: ./ ,/ ,# Note:

1. Define the function and reference inside the shell file:Copy CodeThe code is as follows:[~/shell/function]# Cat factorial.sh#!/bin/bashfunction factorial{Factorial=1For ((I=1;i Dofactorial=$[$factorial * $i]DoneThe factorial of Echo $ is:

Script execution1. Give execution permission to run directlychmod 755 hello.sh./hello.sh #需要使用文件的绝对路径或相对路径2. Execute script via bash callEcho Output commandSyntax: Echo [-e] [output CONTENT]-E: Character conversions that support backslash controlEG1:

Shell Script Rollup 1 Name the backup file by month date#!/bin/bash# Create a back package for MySQL of the ball and web of ballcloud## backup mysql-ball and web for BALLCLOUDCD /www/web/backup_ballcloud/year= ' Date +%y ' month= ' date +%m ' day= '

Writing a shell script inevitably encounters the steps that require interactive input instructions:Method One:# Cat Action.sh#!/bin/shRead-p "Enter Number:" No;Read-p "Enter Number:" Name;echo you have entered $no, $name;# sh action.shEnter

1. Judging by file type (common)-B To determine if the file exists-D to determine if it exists and whether it is a directory (the directory is true)-E to determine if the file exists (exists as true)-F to determine if the file exists and whether it

First, what is the bean Shell BeanShell is a scripting language that conforms fully to the Java syntax specification and has its own syntax and methods. BeanShell is a loosely typed scripting language (this is similar to JS);

Previous Article JMeter Bean Shell Use (i) A brief introduction of the bean shell in the next jmeter, this article is a supplement to the above, the main summary of the several commonly used scenarios and methods, I believe these basic can cover

Variable: Stores the memory space of a single element:Array (multiple contiguous memory spaces): a contiguous memory space that stores multiple elements:Array Name:Index: Numbering starting from 0, is a numeric index;Note: Indexes can also support