Command Sudo

If a computer needs to be managed by several people at the same time, it's best not to use the root account. Because if everyone uses the same permissions, it's hard to determine who is and where and what. sudo commands are used to solve this problem. The sudo command allows users defined in the/etc/sudoers configuration file to have temporary permissions to run commands that they cannot run under normal file access permissions. These commands can be either root or other users defined in the/etc/sudoers configuration file ...

In Linux (and normal Unix), the name of the superuser is called Root. Windows corresponding to the root account is the Administrator. Super users can do anything, so the superuser becomes dangerous in their daily work. You can enter a wrong command to destroy the entire system. Theoretically, the user you run should have just the right to the task at hand. In some cases, it requires root, but most of the events are normal users. Ubunt ...

Function Description: Executes instructions in other capacities. Syntax: sudo&http://www.aliyun.com/zixun/aggregation/37954.html >nbsp; [-BHHPV] [-s <shell>] [-u < user] [directive] or sudo [-KLV] Supplemental Note: sudo allows users to use the other body ...

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 ...

Command Action Apt-cache Search package searching Package Apt-cache Show package get information about the package, such as description, size, version, sudo apt install package installation package sudo apt Install package--Reinstall Reinstall package sudo apt-get-f install forced installation? # "-...

Not long ago I provided 12 suggestions to adjust Ubuntu. However, it has been a while ago, and now we have made another 10 suggestions that will make your Ubuntu your home away from home. These 10 suggestions are easy to implement, so let's get started! 1. Install TLP We touched on TLP not long ago, a software that optimizes power settings and allows you to enjoy longer battery life. Before we go into the TLP in-depth, and we also mentioned in the list of this software is not bad. want...

In Linux (and normal Unix), the name of the superuser is called Root. Windows corresponding to the root account is the Administrator. Super users can do anything, so the superuser becomes dangerous in their daily work. You can enter a wrong command to destroy the entire system. Theoretically, the user you run should have just the right to the task at hand. In some cases, it requires root, but most of the events are normal users. Ubunt ...

Apt is a Linux command for the Deb package-managed operating system that is used to automatically search, install, upgrade, uninstall software or operating system from the Internet's software warehouse. Apt commands generally require root permission execution, so generally follow the sudo command example: sudo apt xxxx under the apt use method of the detailed guide, for everyone to see the use of apt install &http://www.aliyun.co ...

ClamAV is a command line under the virus detection software, because it does not use antivirus as the main function, the default can only detect viruses in your computer, but can not clear, at most http://www.aliyun.com/zixun/aggregation/18137.html " > Delete files. ClamAV can work on a lot of platforms, but a few can't support it, depending on the popularity of the platform you're using. In addition it is mainly to protect some Windows virus and Trojan program. Other than that...

First, the hardware environment Hadoop build system environment: A Linux ubuntu-13.04-desktop-i386 system, both do namenode, and do datanode. (Ubuntu system built on the hardware virtual machine) Hadoop installation target version: Hadoop1.2.1 JDK installation version: jdk-7u40-linux-i586 Pig installation version: pig-0.11.1 Hardware virtual machine Erection Environment: IBM Tower ...