你可以通过 update-alternatives 工具来管理多个 Java 版本: bash sudo update-alternatives --config java 这将显示一个列表,你可以从中选择默认的 Java 版本。 根据具体情况,给出进一步的解决方案或建议: 如果你在尝试上述步骤后仍然遇到问题,请确保你的用户有足够的权限来执行 java 命令。 检查是否有任何安全...
sudo apt-get install sun-java6-jdk 之后需要设置默认的java程序 sudo update-alternatives --config java 按照提示输入对应的选项,指定为JDK 6 下面设置 sudo vim /etc/environment 在其中添加如下两行: CLASSPATH=/usr/lib/jvm/java-6-sun/lib JAVA_HOME=/usr/lib/jvm/java-6-sun 如果其中已经设置了CLASS...
# 因为/etc/sudoers普通用户无法打开和使用 $ sudo update-alternatives --config editor There are 4 choices for the alternative editor (providing /usr/bin/editor). Selection Path Priority Status --- * 0 /bin/nano 40 auto mode 1 /bin/ed -100 manual mode 2 /bin/nano 40 manual mode 3 /usr...
Re: javac: command not found with sudo Sun Jun 02, 2013 5:18 pm Oh... I finally fix it... Just type these lines : Code: Select all sudo update-alternatives --install "/usr/bin/javac" "javac" "/opt/java/jdk1.7.0_21/bin/javac" 1 sudo update-alternatives --set javac /opt...
main $ sudo apt-get update sudo apt-get update sudo apt-get install -y openjdk-8-jdk sudo update-alternatives --config java sudo nano /etc/apt/sources.list sudo apt-get update exit sudo nano /etc/apt/sources.list sudo su su - sudo nano /etc/apt/sources.list sudo apt-get update ...
-v If given the -v (validate) option, sudo will update the users timestamp, prompting for the users password if necessary. This extends the sudo timeout for another 5 minutes (or whatever the timeout is set to in sudoers) but does not run a command. -- The -- flag indic...
问sudo: java:从root用户退出后未找到命令EN欢迎访问我的GitHub 这里分类和汇总了欣宸的全部原创(含配套...
If you want to remove a ppa for example ondrej/php just run the command: sudo add-apt-repository -r ppa:{ppa to remove} 1 $ sudo add-apt-repository -r ppa:ondrej/php List those installed PHP versions in Ubuntu 1 2 3 $ sudo update-alternatives --list php /usr/bin/php5.6 /usr/bi...