Linux

Configuring the server's Yum repository[Email protected] ~]# rm-rf/etc/yum.repos.d/*[Email protected] ~]# Vim/etc/yum.repos.d/dvd.repo[DVD]Name=dvdbaseurl=http://172.25.254.254/content/rhel7.0/x86_64/dvd/Enabled=1Gpgcheck=0[email protected] ~]# Yum

1. Install wget commandIf you need to download the MAVEN installation package directly over the network by using the wget command, you need to install the wget command on the Linux system.Yum-y Install wget2. Download MAVEN installation packagewget

Requirements研究Linux下IPC机制：原理，优缺点，每种机制至少给一个示例，提交研究博客的链接 - 共享内存- 管道- FIFO- 信号- 消息队列Research Blog Pipeline (pipe) Pipe: A pipe is a half-duplex mode of communication in which data can flow only one way, and can only be used between processes

DescriptionIn order to quickly deploy experiments, we often use virtual machine clones in the process of using a Linux virtual machine. This article is a summary of the problems that occur during the virtual machine cloning processCommon

One, the concept of Disk Management:Linux system is a multi-user task operating system, when using the system, there will be multi-user common use of a disk, if a few users occupy a large amount of disk space, it is bound to compress other users

The so-called I/O redirection is simply a process that captures the output of a file, or command, program, script, or even a block of code in a script, and then takes the captured output as inputSend to another file, command, program, or script.

1. Download the Deb package to the official website: HTTPS://DL.BINTRAY.COM/SBT/DEBIAN/SBT-1.0.3.DEB2. Click on the downloaded Deb package to install 3. After the installation is complete, enter the following command in Terminal:$sbt

Linux system LVM partition capacity reduction and expansionObjective: to Volgroup-lv_home shrinks to 20G and adds the remaining space to the Volgroup-lv_root1. Check disk usage First[Email protected] ~]# df-hFile System capacity has been used with

First, the basic regular expression1. "." (one point) symbolThe dot symbol is used for u to match any character except for the line break symbol. For example: R.T can match rot, rut, but cannot match root, but if R is used. T, you can match root,

To modify a user password:sudo passwd (current) Username "Sudo is a shorthand for super user do, passwd is a shorthand for password"Show Current user : WhoAmIThere will be a string of characters before the command entered, such as: [email protected]:

I. Introduction to log Management Log serviceThe log service in CentOS 6.x has replaced the original SYSLOGD service by RSYSLOGD. RSYSLOGD Log service More advanced, more features. However, regardless of the use of the service, or the

Linuxdaily operation and maintenance management skillsMonitor system Status1.w/uptime View the status of the system, execute this command to know who is currently logged into the system, and what programs they are executing , and what the current

When Linux starts, it automatically executes the initialization program in the/ETC/RC.D directory, so we can put the startup task in that directory:1, because the rc.local is executed after all initialization has been completed, so you can write the

Linux interprocess communication (IPC) mechanism 1. Shared memory Shared memory is a process of communication between multiple processes that share memory areas, a special range of addresses created by IPC for a process, which will appear

From the bottom of the following, Linux through the $path path sequence, from the left to the start to find a program, if there are two paths under the program, the first to find the subject[rpc_server]$ which 23/usr/bin/which:no in (/usr/local/bin:/

1. Find a Java-related list:[Email protected] ~]# yum-y list java*2. Install using the root userThe installation reminder must use the root user and sudo will not work.[Email protected] ~]$ yum-y install java-1.7.0-openjdk*3. Check if the

User working directory (home directory):~/home/User NameAbsolute path:the path described from the root directory is called an absolute path (for example: Cd/home ls/usr )Relative path:The path that is described at the beginning of the current

The WIN10 subsystem switched the underlying interface of Windows to Linux to run Linux, but he did not have the option to install it when it was installed. (also Hyper V)All distributions that are installed from the store now exist in the following

Linux system LVM partition capacity reduction and linuxlvm partition Capacity Expansion Linux LVM partition capacity reduction Goal: scale down the VolGroup-lv_home to 20 GB and add the remaining space to the VolGroup-lv_root 1. First check the disk

Deploy Zabbix monitoring in Centos/Rhel7 (deploy server) and centoszabbix ZabbixIs an enterprise-level open-source solution that provides distributed system monitoring and network monitoring functions based on the WEB interface. Zabbix can monitor