Linux

Because there are 6 running levels in linux The single-user running level is-1, which is the single-user running level. You can change the root password in this mode. This mode has the following features: Passing parameter 1 or single for the

I. Shell Structure 1 ,#! Specifies the Shell for executing the script 2. # comment the line to describe the role and owner of the script. 3. command and control structure 2. Create a shell program Step 1: create a file that contains commands and

First install: kernel-devel Execute Command: yum install kernel-devel-$(uname -r) Download the virtual machine of the corresponding version from the official Virtualbox website. Https://www.virtualbox.org/wiki/Linux_Downloads Then #rpm -ivh

1. Install GIT $ Sudo aptitude install git $ Sudo aptitude install git-doc git-svn git-email git-gui gitk The git package contains most of the Git commands, which are mandatory and the second line is also the Git package, but is released separately.

C 1. Search for software package information Apt-cache search Apt-cache search yum 2. view the software package information Apt-cache show rpm 3. Install software Apt-get install rpm Option: apt-get reinstall overwrite Installation -F

Background: 0. server data is very important. If the disk is damaged, it will be troublesome. As a manager, it is necessary to synchronize and back up data in real time. 1. rsync is a good backup tool. The following uses Ubuntu as an example to

Chapter 2 passing parameters in basic shell programming scripts Why should we pass parameters to shell scripts? Parameter passing can pass external values to the internal functions of the script to improve the flexibility of the script. parameter

This note is based on the introduction of linuxShell programming to a book proficient in learning experiments and related notes. PDF File Download: http://download.csdn.net/detail/ruishenh/6586391Chapter 1 describes three methods to run a linux

In Unix/Linux, the most efficient technique is not to operate the graphic interface, but to operate on the command line, because the command line means automation. Daily In bash, use Ctrl-R instead of the Upper/lower cursor key to search for

Chapter 5 basic text processing sorted text Text processing is almost the most important part of UNIX/LINUXShell programming. In the UNIX/LINUX design, everything is a file, and the collaborative work of many programs in the system is achieved

Create a scriptLinux has many different shells, but we usually use bash (bourne again shell) for shell programming, because bash is free and easy to use. So in this article, all the scripts provided by the author use bash (but in most cases, these

Upload to the/usr/tomcat7 directory Cp/home/toto/Desktop/apache-tomcat-7.0.47.tar.gz/usr/tomcat7/ 2. Go to the Tomcat 7 directory. Cd/usr/tomcat7 3. Unzip tomcat Tar-xzvf apache-tomcat-7.0.47.tar.gz 4. Check whether tomcat is enabled for

I. Working Principle of DrbdDRBD is a block device that can be used in HA. it is similar to a network RAID-1 function. (compare NFS in Linux) when you write data to a local file system, the data will be sent to another host on the network. record in

Zookeeper Function Displays process information. Format Ps [options] Main Parameters Basic Process Selection Control -A,-e All processes -N, -- deselect Select all processes except for meeting specific conditions -D All except the first PROCESS

[Free] LinuxSystem debugging technology sharing salon Qian chonglang Linux technology Studio Are you still wandering outside the Linux gate? Are you still holding over 1000 pages of Linux classic hard-working late at night? Are you sure

Reboot, halt, poweroff After reading the man help information of these three commands, we found that the same functions are implemented. Purpose: Restart or shut down the system Syntax: Reboot [options] Halt [options] Poweroff [options]

It has been a headache for me since I started to use ubuntu. Fortunately, after plugging in the headset, you can barely use it, so you will not continue to investigate it. A more serious problem has been found recently.Failed to wake up after being

1. Use commands to set the Ubuntu IP Address 1. modify the configuration file blacklist. conf to disable IPV6. Sudo vi/etc/modprobe. d/blacklist. conf The contents of the blacklist. conf file in The modprobe. d folder in the etc folder are edited

If you have multiple servers and one server is logged on for management, it cannot be said, so the batch management tools have emerged. If you have set SSH password-less Logon: ssh-keygen -t rsassh-copy-id user@host By distributing the key to the

Recently, several servers need to be backed up due to migration and other issues. The server runs the UbuntuServer. After studying the backup method, find the simplest one, which is also suitable for sharing among other Linux systems ~ The