Shell

#!/bin/sh#mysql Address # Detects if the user entered the password manually mysql_host= "" #mysql用户mysql_user = "" #mysql密码mysql_password = "#mysql数据库名 # If you do not fill in the database name you want to export the error message and terminate

First, the basic operation of the database1) Log in to MySQL server: mysql-u root-p password2) View database: Show databases3) View table: Show Tales from DB;4) View table structure: DESC table;5) Creating Table: Create table table ();6) View Table

$ () and ' (anti-quote)In the bash shell, $ () and "(anti-quote) are used for command substitution.$ echo the last Sunday was $ (date-d "last Sunday" +%y-%m-%d)Get the date of the previous SundayThe reason for using $ () ' (anti-quotes) is

Enterprise Practice Question 16:Enterprise Case: Write Network Service standalone process mode rsync system startup scriptFor example:/etc/init.d/rsyncd{start|stop|restart}.Requirements:1. To use the System function library technique.2. To use a

(a) Installation ideas(1) Source code compile Apache WEB Service(2) Source code compile MySQL DB service(3) Source code compiled PHP WEB service(4) Lamp Source Integration +php page creation(5) Optimization of shell scripts, introduction of

Shell after class summary High wavesArchive: Learning NotesDecember 4, 2017 13:31:08 Shortcut keys:Ctrl + 1 title 1Ctrl + 2 title 2Ctrl + 3 title 3Ctrl + 4 ExampleCtrl + 5 Program CodeCtrl + 6 Body Format

1. The idea before writing a scriptConsiderUnified Script ManagementPermissions: User execution permissionsEmpty the error fileError hintsScripting Versatility2.2 Unified Script Directory1 mkdir /server/scripts2 cd/server/scripts2.3 Creating a

First, function definition and invocationA function is a series of commands that are customized in a shell script, and generally the function should have a return value (returning 0 correctly and returning a non-0 error). For error returns, you can

#!/bin/bashPython_path=/home/huaw/Crawlerpython_name=list_all_v6_crawler.pymax_sync_process=40Echo"Max allowed Ic_stat_company_submit process is $MAX _sync_process"Current_sync_num= ' Ps-ef|grep $python _name | Wc-l |grep-v grep ' current_sync_num=$[

Shell: The command interpreter executes the corresponding command according to the command entered.See which shells are under the current system:Cat/etc/shellsView the shell that is currently in use by the systemEcho $SHELLCommon shell/bin/sh "has

Special Compliance 1. * Any of the characters 2. ? Any one character 3. # comment Character 4. \ de-semantic character 5. | Pipe character 6. The $ variable prefix, which represents the row bit 7. ; Multi-line command line input, split with

First Kind# 这里的例子以周为循环!/bin/bashbegin_date="20160907"end_date="20170226"while [ "$begin_date" -le "$end_date" ];do year=${begin_date:0:4} week_of_year=$(date -d "$begin_date" +%W) echo $year, $week_of_year begin_date=$(date -d

SED command Related:Https://www.cnblogs.com/ggjucheng/archive/2013/01/13/2856901.htmlHttps://www.cnblogs.com/DragonFire/p/6600121.htmlHere we have to do the function is:Enter a directory "/data/data8"Transform it to "\/data\/data8" in the shell

Pipe characters and variablesOne, the pipe character and the job command1.txt |wc–l; Cat 1.txt|greap ' AAA 'The command for the pipe character is to give the result of the previous output to the following command2.ctrl z pause a task3.jobs viewing

Enter parameter traversal########## [email protected] indicates a parameter string#!/bin/bashecho [email protected]For i in [email protected]; DoEcho $iDoneSelf-incrementAs far as I know, in bash, there are currently five ways to do this:1. i= '

I. Rights Management1. View file propertiesLs-l2. Permission TypeIi. Linux Users and permissions1. User Management① Viewing usersID User1② adding usersUseradd user1③ Deleting a userUserdel-r user11. User Group① New GroupGroupadd G1② Deleting a

Optimized scripts for automatic backup, automatic restart of Tomcat#!/bin/bashnew_war= "Mobile.war" project_name= "tomcat-app1" #创建临时文件夹tempDirName = ' date ' +%y%m%d%h%m%s ' tempdirname= "Bak/mobile-${tempdirname}" echo "Ready to create Temp folder:

Introduction to ArraysBash provides only one-dimensional arrays, and does not qualify the size of the array. Similar to the C language, the subscript of an array element is numbered starting with 0. Gets the elements in the array to take advantage

1. Take the IP address of the ifconfig eth0[Email protected] ~]$ ifconfig eth0Eth0 Link encap:ethernet HWaddr 00:0c:29:68:47:71inet addr:192.168.48.144 bcast:192.168.48.255 mask:255.255.255.0Inet6 ADDR:FE80::20C:29FF:FE68:4771/64 Scope:linkUp

Install Putty.exe, the following EXE files are installed in the installation directoryCreate File Put-file-mobile.txtRM Mobile.warput D:\SVN_LZY\dragon-tour-2_1\lzy-mobile\target\mobile.warexitCreate a batch file release-mobile.batPsftp.exe [email