Shell

The following script backs up all the source files to be edited into the/bak directory, and all path locations remain unchanged, such as Vii/etc/hosts, and the/etc/hosts is copied to/bak/etc/hosts. # CAT/SH/VII #!/usr/bin/bash #判断源文件是否存在, exist

This article mainly introduced the introduction of Linux in the CP and MV Collocation {,} in the use of the shell, the author cited four such braces to expand the example, the need for friends can refer to the Often see commands like the following

This shell script is primarily used to initialize the new Linux server system, including shutting down the IPV6 module, turning off the SELinux, allowing Vim to display colors, setting system language encoding, optimizing system services, kernel

The shell is also called a command-line interface, which is the interface between the user and the computer under the *nix operating system. The term shell refers to programs in the operating system that provide access to kernel services. This

Recently, just need to test the stability of the new station, so write a shell script to the local (recently changed MAC), to real-time view you need to monitor the status of the Web page, and sent to the designated mailbox.Here's a compliment. OS X

RPM Execution Installation package Binary package (Binary) as well as source code package (sources) two. The binary package can be installed directly on the computer, and the source code package will be automatically compiled and installed by RPM.

There are many ways to read one file at a row in Linux, the most common of which is the method in the following script, and the most efficient and most used method. In order to give you an intuitive feeling, we will test the execution efficiency of

First, install the following Linux mail client msmtp software (similar to a foxmail tool)1. Download and install: Copy Code code as follows: # tar JXVF msmtp-1.4.16.tar.bz2 # CD msmtp-1.4.16 #./configure--PREFIX=/USR/LOCAL/MSMTP

The following script can count the total number of visits to the site and how many times 404,500 occur. Statistics, we can combine the monitoring of the Bora record, and then you can see whether the site traffic anomaly, whether there is an attack,

In many Java projects, you will often see a wrapper shell script that invokes the Java command with the program's custom parameters. For example $ANT _home/bin/ant, $GROOVY _home/bin/groovy , even in our TimeMachine scheduler program.

One, install secure shell, then the SSH Secure Shell client and SSH secure File Transfer client two shortcuts will appear.You need the server's IP address, username and password to connect to the server.Second, use SSH Secure file Transfer client to

ObjectiveCompany development and use Docker, each landing their own development machine to input ssh [email protected]_string , and then confirm the input password , deft on hand also often will be wrong. As a lazy person, must find a trickery way,

Format: echo-e "\033[word background color; font color m string \033[control code"If you simply display the font color can be fixed control code bit 0m.Format: echo-e "\033[word background color; font Color m string \033[0m"Word background color

Reprint: http://www.cnblogs.com/jifeng/archive/2011/06/25/2090118.htmlModify the/etc/ssh/sshd_config file to find Clientaliveinterval 0 and Clientalivecountmax 3 and remove the annotation symbol ("#")Change the corresponding 0 of the

Introduction to spark Basics, cluster build and Spark ShellThe main use of spark-based PPT, coupled with practical hands-on to enhance the concept of understanding and practice.Spark Installation DeploymentThe theory is almost there, and then the

Bash shell Script Introduction Shell Runtime EnvironmentIf you're running a Unix or Linux system, such as Ubuntu,red Hat,suse Linux and MacOS, it's built-in bash shell, so you don't need to configure the so-called development environment.My shell

Objective:No matter what programming language is inseparable from conditional judgment. The shell is no exception.Copy CodeThe code is as follows:If List ThenDo something hereElif List ThenDo another thing hereElseDo something else hereFiEX1:Copy

One, temporary configuration network (IP, gateway, DNS) + permanent configuration1, the Temporary Configuration network IP address command is "ifconfig network card name IP address/24", for example:Ifconfig eth0 192.168.16.253/242. Temporarily

Shell Description: The command line of the operating system terminalThe shell can be understood as a command-line interface that the software system provides to the user for operation. A way of human-computer interactionWe can use the shell to

Transferred from: http://blog.sina.com.cn/s/blog_605f5b4f0101azuc.htmlThe method for creating a named pipe is: Mkfifo pipe_name.This allows you to create a named pipe pipe_name.Run the command and redirect the output to the pipeline and throw the