Shell

You must download the MySQL5.5 binary compression installation package before executing the script. I have downloaded it in advance. Execute the shell script below.#!/bin/bash#auth:taoyake/bin/mkdir -p /taokey/toolscd /taokey/tools/tar -zxf  mysql-5.

Conditions= equals applies To: integer or string comparison if in [], only the string! = is not equal to: integer or string comparison if in [], only the string-eq equals applies To: integer comparison-ne not equal to: integer comparison-lt less

Shell Introduction1.Shell was born in Unix,unix's first scripting language, which is a tool for interacting with unix/linux, it is meaningless to learn the shell alone, and the proficiency of the shell is a reflection of the user's proficiency in

Shell's Features~/.bash_history command history to store files, log out after saving.$HISTSIZE the number of command history bars, which allows the ~/.bash_history file to store the number of command bars, by default.!! : Previous command!$: Last

Variable Description:$$The PID of the shell itself (ProcessID)$!PID of the Shell's last running background process$?End code of the last Run command (return value)$-Flag at a glance using the SET command$*All parameter lists. such as "$*" in the

grep (Global search Regular expression (RE) and print out of the line, fully search regular expressions and print out the lines)grep is a powerful text search tool that uses regular expressions to search for text and prints matching lines without

There are 6 main types of conditional judgments:[Email protected] test]# Ls-ltotal 8drwxr-xr-x 2 root root 4096 Jan 19:28 shell-rw-r--r--1 root root 4 Jan 17 19 : Test.sh[[email protected] test]# [-D test.sh] && echo "Yes" | | echo "No" no[[email

1. Regular expressionsIn fact, it is a specification, that is, the pattern, constraint string, and so on what kind of format, such as the requirement that the string must begin with a, t end, strings that meet such conditions will use the regular

Requirements:1. Create a directory/tmp/scripts2. Switch the working directory to this directory3. Copy the/ETC/PAM.D directory to the current directory and rename it to test4. Change the current directory's test and the owner of the files and

Cat command Display file [Email protected] zsh]#CatFstab.stest1: .test2: .[email protected] zsh]#CatFstac.stest1: .test2:2018[email protected] zsh]#Cat*. S #合并文件test1: .test2: .test1: .test2:2018[email protected] zsh]#Cat*.s |Sort#合并和排序文件test1:

This article contains script service requests, string interception, file read and write content, print content wrapping. #!/bin/bashRetmsg= "";While Read lineDoecho "This is text: $LINE";Retmsg= '/usr/bin/curl-o test3.log-w%{http_code} ' \\n ' $LINE

Repeating a series of commands while running a script is common, and we need to use loop statements to do this.One, for commandFormat: for variable in list;Loop bodyDoneThe for command iterates through each value in the list and exits the loop after

1. Describe the results of the following commandsMore/etc/shellsDisplays all the contents of the shells text.Echo $SHELLView the shell program used by the current user.History-cClear historical and practical commands.Echo $HISTIZERecord the history

1. the server needs to clean the common shared directory of the FTP server 17:30 every week, first check the/var/ftp/pub/directory, and then save the detailed list and current time information of all subdirectories and files to/var/log/ Pubdir.log

Case section:#!/bin/bash                                 //program starts #file:  case.shecho  "==========" echo  "welcome!" echo  "1 copy" echo  "2 delete" echo  "3 backup" echo  "4 Quit" echo  "= = = ======= "echo " Please input your select: "read 

Enterprise Real Shell interview questions, a challenge to put!Statement: If there is a similar, purely plagiarism1. Develop a daemon script that executes every 30 seconds to check MySQL master-slave synchronization[email protected] scripts]# cat

MethodsBoth the Processbuilder.start () and the Runtime.exec () methods are used to create an operating system process (to perform command-line operations) and return an instance of the process subclass that is used to control the status of

models.pyFrom django.db import modelsclass person (models. Model): Name=models. Charfield (max_length=30) age=models. Integerfield () def __unicode__ (self): return self.name./manage.py ShellPerson.objects.order_by ("id")[, , , , ,

First write a test script test.sh on the remote server and give the executable permission: chmod +x test.sh#!/bin/bash echo ' test22 ' echo $$ $ is the first parameter passed in the script, and our console prints this parameterTo create a new MAVEN

Linux Machine First installs wmi-1.3.14.tar.bz2TAR-JXVF wmi-1.3.14.tar.bz2CD wmi-1.3.14MakeCP samba/source/bin/wmic/usr/local/bin/Pass parameter information through the file into the script and get the outputWmi.sh ————————————————————#cat/mess/host|