Linux Switch Command

In Linux, the CD command is a frequently needed instruction, and the CD command allows us to switch freely in the directory, if you need to switch to the root directory, the command is as follows: [root@localhost ~]# CD/[Root@localhost/]# Here we introduce you to use the CD command tips in any directory to switch home directory [root@localhost/]# CD [root@localhost ~]# ...

The Linux shell refers to a program that allows users to manipulate computers by typing instructions to the keyboard. The shell executes http://www.aliyun.com/zixun/aggregation/18678.html > user-entered commands and displays the execution results on the monitor. The whole process of this interaction is text-based and differs from the graphical operations described in other chapters. This command-line-oriented user interface is called the CLI (command line ...).

In many cases, we want to know how much space the individual files and directories on the hard disk are using. And the total space occupied by a directory. The du command can help us. After we enter the terminal, we can use this command in any directory. Now use this command in the OPT directory of our own Linux system. We tried to enter the command: Du. In the figure above, we use the Red line to show the size of each file and directory that occupies the hard drive. The position of the green coil is relative to the name of each file and directory. And the position of the blue circle is the order of the current eye ...

What we want to does in this tutorial, I'll describe the required tournaments for setting up a multi-node Hadoop cluster using the Hadoop Distributed File System (HDFS) on Ubuntu Linux. Are you looking f ...

Today, let's take a look at the VMware Workstation linuxhttp://www.aliyun.com/zixun/aggregation/30744.html "> Sharing Internet Problem, after installing CentOS, Network settings are required to access the Internet! Of course, if you have a router, directly in Linux to obtain IP automatically can access the internet! Or to specify the router's IP address and gateway, but generally we are using ADSL dial-up, ...

It must be understood that vncserver, when invoked, will enable the server-side listening port based on your configuration, with the port default starting from 5900, plus your desktop number. For example, if your desktop number is 1, then VNC's connection port number is 5900+1=5901 For example, your desktop number is 10000, then VNC's connection port number is 5900+10000=15900 ===================================== ===================...

cd command to change the working directory. For example: the command function CD ~ will send you back to your login directory CD/Take you to the root directory of the entire system cd/root take you to the root user's home directory; You must be a root user to access the directory Cd/home take you to the home directory where the user's login directory is usually stored on CD. Move up one level directory Cd/dir1/subdirfoo no matter which directory you are in, this absolute path will take you directly to Subdirfo ...

Function Description: Exit the extraction device. Syntax: eject&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-dfhnqrstv] [-a < switch] [C < CD-ROM number] [Device] Supplemental NOTE: If the device has been mounted, then eject will remove the device before exiting. Parameters:   ...

ubuntu16.04server install dockerCE. Docker is an application that makes it simple and easy to run applications in containers, just like virtual machines, which are only more portable, more resource-friendly, and more dependent on the host operating system. To learn more about the different components of a Docker container, see Docker Ecosystem: An Introduction to Common Components. There are two ways to install Docker on Ubuntu 16.04. One way is to install it on an existing operating system installation. Another way is to use one ...

Feature Description: Log in to another group. Syntax: newgrp&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [Group name] Supplemental Note: The NEWGRP directive resembles the login instruction, when it is logged into the system again with the same account number, another group name. To use the NEWGRP command to switch groups, you must be a user of that group, otherwise you will not be able to log in to the specified group. Single user should be subordinate to ...