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Recently installed in Ubuntu16.04 python3.5 and the system comes with the python2.7.13, summarize the different versions of the switching problem. Alias: Aliases BASHRC: Personal Profile First, modify the Python version (for users)To modify a Python version for a particular user, simply create one (alias) in its home directory alias . Open the user's ~/.bashrc file and add the new alias information to modify the Python version that is used by default.Alias python= '/usr/bin/pyt

the TAR.GZ package you downloaded by default3. Set the system default JDKJDK8sudo update-java-alternatives-s java-8-oracleIf the JDK7 is installed and the JDK8 is installed, to switch between the two, you can:JDK8 Switch to Jdk7sudo update-java-alternatives-s java-7-oracleJDK7 Switch to Jdk8sudo update-java-alternatives-s java-8-oracle4. Test whether the JDK was

ubuntu 16.04本身是自带python的，他本身是自带2.X和3.X,两个版本，默认的是2.X。这里记录一下如果在版本间切换以及如何把python版本切换到3.X下的方法。1. See the version of Python installed in Ubuntu and the Python version currently in useLs/usr/bin/python*python--version2. Set Update-alternatives to toggle Python versionShow python in place of version informationUpdate-alternatives--list pythonShow after executionUpdate-alternatives:error:no

First install sun1.6, here I install the directory is/usr/java/jdk1.6.0_45 Then set the profile file/etc/profile (add the file at the end of the file) sudo vim/etc/profile Export java_home=/usr/java/jdk1.6.0_45 export jre_home=/usr/java/jdk1.6.0_45/jre export classpath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar export path= $PATH: $JAVA _home/bin Source/etc/profile Then install openjdk1.7, you can install it in Software Center, and then execute the following command after installat

Tags: ons file permissions maintenance Ali awt install Oracle ISP download systemDeepin System Manual Installation Oracle Jdk8 detailed tutorialsDownload the JDK archive from Oracle website and extract the files using sudo tar-zxf jdk***, which I placed under the HOME/DIY/JAVA/JDK path.JDK file path:/home/diy/java/jdk/jdk1.8.0_152JDK environment variable ConfigurationModifying a configuration filesudo vi/etc/profileAfter entering, knock on I, then you can edit the content.Add content at the end

1. Install NVIDIA Drive./nvidia-linux-x86_64-384.69.runNvidia-smi success indicates driver OK2. Installing CudaDpkg-i Cuda-repo-ubuntu1404-8-0-local-ga2_8.0.61-1_amd64.debApt-get UpdateApt-get Install CudaInstall PATCH2 (can also not be installed) Dpkg-i Cuda-repo-ubuntu1404-8-0-local-cublas-performance-update_8.0.61-1_amd64.deb3. Reduce the GCC version to less than 5.0 (ubuntu-14 not required because it is already gcc-4.8.4,ubuntu-16)sudo apt-get install g++-4.9sudo update-

,Then enter in the above type to search: Additional drivers Open "Additional drivers--additional Driver" and select the NVIDIA driver that matches your graphics card, and here I amUsing Nvidia binary drivers (375)Then choose Apply Changes, where the installation may fail, at which point you can continue to choose to apply the changes, install multiple timesWhen the installation is complete, select restart4. GCC down versionCUDA8.0 does not support GCC 5.0 and above compilers, and the system come

Ubuntu 14 Installation Jdk7: Official website Download: http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.htmlSelect Accept license and choose the JDK download that suits your model.1. unzip the downloaded JDK file: [email protected]:~$ lsWorkspace public template video picture document download music Desktop[Email protected]:~$ cd Download$ sudo mkdir/usr/lib/jvm$ sudo tar-zxvf jdk-7u55-linux-i586.tar.gz-c/USR/LIB/JVM2. Configure environment variables belowCommand

:OpenJDKSourceBundleldapjdk.x86_64:TheMozillaLDAPJavaSDK 2. Select a version to installWe install the 1.7 version here 1 [[emailprotected]~]#yuminstalljava-1.7.0-openjdk After the installation is complete, the default installation directory is:/usr/lib/jvm/java-1.7.0-openjdk-1.7.0.75.x86_643. Setting Environment variables 1 [[emailprotected]~]#vi/etc/profile Add the following content: 123456 #setjavaenvir

Phenomenon:---------------------------------[ERROR] Failure executing Javac, but could not parse the error:Javac:invalid Target release:1.8Usage:javac Use-help for a list of possible option---------------------------------The survey found that:[Email protected] ~]# java-versionOPENJDK Version "1.8.0_65"OpenJDK Runtime Environment (build 1.8.0_65-b17)OpenJDK 64-bit Server VM (build 25.65-b01, Mixed mode)[Email protected] ~]# javac-versionJavac 1.7.0_111that is, Java is inconsistent with the Javac

First, install the Java SE JKDA, download Http://www.oracle.com/technetwork/java/javase/downloads/index.html?ssSourceSiteId=ocomen Select the latest version, the current latest version 1.8.0. Download jdk-8u45-linux-x64.tar.gz.B, unzip the download package, add environment variables.$ sudo vim ~/.BASHRCAdd at the end of the documentExport Java_home=/home/jeremy/jdk1.8.0export jre_home=${java_home}/jre export classpath=.:${java_home}/lib:${ Jre_home}/lib export Path=${java_home}/bin: $PATH It

-cookie "" http://download.oracle.com/otn-pub/java/jdk/8u111-b14/ jdk-8u111-linux-i586.tar.gz "# tar Xzf jdk-8u111-linux-i586.tar.gzNote: If Above wget command does not work for your watch this example video to download Java source archive using terminal.Install Java with alternativesAfter extracting archive file with Alternatives command to install it. Alternatives command is available in the chkconfig pac

Compile the Android 4.4.2 source code In the previous article, I shared with you the process of downloading the android 4.4.2 source code in the sky (see the whole process of downloading the android4.4.2 source code (with the downloaded source code). Now I will write down the compilation notes. Installing the JDK The master branch of Android in the Android Open Source Project (AOSP) requires Java 7. On Ubuntu, use OpenJDK. Java 7: For the latest version of Android $ sudo apt-get update$ sudo

Build a Python development environment in Ubuntu 13.10: Step 1 install JDK (to install eclipse ide) Decompress the installation package and set JDK. The update-alternatives -- install option feature adds a new set of system command links. Tar-zxvf jdk-7u45-linux-x64.tar.gzSudo mkdir-p/usr/lib/jvmSudo mv./jdk1.7.0 _ 45/usr/lib/jvm/jdk1.7.0Sudo update-alternatives -- install "/usr/bin/java" "java" "/usr/lib/j

one line./usr/bin/java->/etc/alternatives/javaExport PATH = $ PATH :$ {JAVA_HOME}/bin :$ {JRE_HOME}/binThen execute the following$ Sudo update-alternatives-install/usr/bin/javah/opt/jdk/bin/javah 255$ Sudo update-alternatives-install/usr/bin/javac/opt/jdk/bin/javac 255$ Sudo update-alternatives-install/usr/bin/java/op

Practical Android skills: Switch JDK under Ubuntu After Android L, we recommend that you use JDK 7 to compile the program. This is a natural development rule, just like compiling Android 1.6 4 years ago and using JDK 5. Multi-version JDK can coexist. You only need to use the update-alternatives tool to switch between them at any time. The following describes how to install openjdk and oracle jdk (cannot cope with sun) and switch the version.1. Install

VM and Utuntu InstallationVMware Installation/ubuntu InstallationVMware Environment ConfigurationInstall Vmware-tools:TAR-XF xxx.tar.gzsudo./vmware-install.pl linkRebootUbuntu Environment Configurationsudo add-apt-repository Ppa:git-core/ppasudo apt-get updatesudo apt-get upgradeInstall Ifconfig:What's the location of the Ifconfig programReference:Ubuntu releases historical versionUbuntu 14.04.5 LTS (trusty Tahr)http://cn.ubuntu.com/download/VmwareVMware Workstation 12.5.5 VMSVMware Workstation

Apple yesterday upgraded OS X El Capitan to version 10.11.5, and from the official update log, the update did not bring any new features, and Apple only noted the fixes and improved system stability. Stephen Brown, the security Agency's product manager for LANDesk, said in his experience report that the latest release of OS X 10.11.5 has fixed 67 system vulnerabilities. One of the most significant things about this update, Brown says, is the Q

Inadvertently, to the MIS for notebook upload the Norton Antivirus software. Enterprise version of the server. We can neither set nor close ourselves, good or bad. Want to uninstall also need a password, installation, Mis told me to uninstall to find him. I'm sorry to trouble them with such trifles. Looking for, finally have a way, now show to everyone, only for reference, anti-virus or necessary, unless you want to change the anti-virus software, OK, to get to the point: Norton Enterprise v

at the end of the open file? 12345 # export Java env export java_home= /usr/local/java/jdk1 .7.0 export jre_home= /usr/local/java/jdk1 .7.0 /jre export classpath=.:%java_home% /lib/dt .jar:%java_home% /lib/tools .jar export path= $JAVA _home /bin : $JRE _home /bin : $PATH Save the exit and enter the following command to make it effective? 1 source~/.bash_profile 4. Configure the default JDK (this step can be omitted