block alternatives

First get to know the ln and update-alternatvies commands.LN LinkFirst, let's talk about the Linux link, which is divided into two kinds: symbolic link (symbolic link) and hard link (hard link).We know that files have file names and data, which are

Recently learning to drive development, progress to the character device-driven development phase.First of all, the first reading of a learning-driven step of the post is recorded as follows:1. Learn to write simple makefile2. Compile an application

Installing the JDKUnzip files, folder for JDK 1.8.0_20, and sudo gedit/etc/environmentAdd the following lines at a later:Path= "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/lib/jdk1.7.0/bin"classpath=.:/

ArticleDirectory What is "float "? What are floats used? Clearing the float The great collapse Techniques for clearing floats Problems with floats Alternatives What is "float "? FloatIs a CSS positioning property. to

Hadoop Core Project: HDFS (Hadoop Distributed File System distributed filesystem), MapReduce (Parallel computing framework)The master-slave structure of the HDFS architecture: The primary node, which has only one namenode, is responsible for

RAID is an abbreviation for "Redundant array of independent disk", which translates to redundant arrays called stand-alone disks, which is actually the storage, access, and backup technology of the disk. Before you talk about RAID, learn the basics

Transferred from: http://www.cnblogs.com/ace-wu/p/6273031.htmlInstall VimThe Vim-tiny is already installed by defaultAcewu@acewu-computer:~$ Locate VI | Grep' vi$ ' |xargs ls-allrwxrwxrwx1 root

Original URL: http://www.mcuos.com/thread-4553-1-1.html Building a compilation environment 1. On the VirtualBoxInstallationUbuntu2. Installing the JDK$ sudo apt-get install SUN-JAVA5-JDK or$ sudo apt-get install SUN-JAVA6-JDK (Donut 1.6

Install java under Ubuntu: Open the terminal under Ubuntu, run the following command, or use Adept/the new software manager to search for "sun-java6-jre" and "sun-java6-jdk" and tag the installation. Sudoapt-getinstallsun-java6-jre if the space is

First, build the android compiling environment. (1) install and configure Java 5 1. install Java 6 First (Java 5 is required for Android compilation. This is recommended here) Open the terminal, run the following command, or use adept/new software