I installed JDK using apt-get install. I dont know where my jdk folder is. I need to set the path for that. Does any one has a clue on the location?
我使用apt-get安装安装JDK。我不知道我的jdk文件夹在哪里。我需要为它设置路径。有人知道地点吗?
10 个解决方案
#1
287
This depends a bit from your package system ... if the java command works, you can type readlink -f $(which java) to find the location of the java command. On the OpenSUSE system I'm on now it returns /usr/lib64/jvm/java-1.6.0-openjdk-1.6.0/jre/bin/java (but this is not a system which uses apt-get).
这取决于你的软件包系统……如果java命令有效，您可以输入readlink -f $(哪个java)来查找java命令的位置。在我现在使用的OpenSUSE系统上，它返回/usr/lib64/jvm/java-1.6 -openjdk-1.6.0/jre/bin/java(但这不是一个使用apt-get的系统)。
On Ubuntu, it looks like it is in /usr/lib/jvm/java-6-openjdk/ for OpenJDK, and in some other subdirectory of /usr/lib/jvm/ for Suns JDK (and other implementations as well, I think).
在Ubuntu上，它看起来像是在/usr/lib/jvm/java-6- OpenJDK /中，在/usr/lib/jvm/的其他子目录中(我认为还有其他实现)。
Debian是相同的。
For any given package you can determine what files it installs and where it installs them by querying dpkg. For example for the package 'openjdk-6-jdk': dpkg -L openjdk-6-jdk
对于任何给定的包，您都可以通过查询dpkg来确定它安装了哪些文件以及在何处安装它们。例如“openjdk-6-jdk”包:dpkg -L openjdk-6-jdk
#2
35
update-java-alternatives -l
will tell you which java implementation is the default for your system and where in the filesystem it is installed. Check the manual for more options.
将告诉您哪些java实现是系统的默认实现，以及系统在文件系统中的何处安装。查看手册以获得更多选项。
#3
27
$ which java
should give you something like
应该给你一些类似的东西吗
/usr/bin/java
#4
11
This question will get moved but you can do the following
这个问题会被转移，但是你可以做以下的事情
which javac
or
或
cd /
find . -name 'javac'
#5
6
Another best way to find Java folder path is to use alternatives command in Fedora Linux (I know its for Ubuntu but I hit this post from google just by its headline). Just want to share incase people like me looking for answers for fedora flavour.
另一种找到Java文件夹路径的最佳方法是在Fedora Linux中使用替代命令(我知道它是Ubuntu的，但是我从谷歌的标题中找到了这篇文章)。我只是想和大家分享一些关于fedora口味的问题。
To display all information regarding java
显示有关java的所有信息
alternatives --display java
#6
6
Use find to located it. It should be under /usr somewhere:
使用find来定位它。它应该在/usr以下的某个地方:
find /usr -name java
When running the command, if there are too many "Permission denied" message obfuscating the actual found results then, simply redirect stderr to /dev/null
运行该命令时，如果有太多“拒绝权限”消息混淆了实际发现的结果，只需将stderr重定向到/dev/null即可
find /usr -name java 2> /dev/null
#7
2
Simple, try it:
简单,试一试:
It's /usr/local/java/jdk[version]
这是/usr/local/java/jdk(版本)
#8
1
the command: sudo update-alternatives --config java will find the complete path of all installed Java versions
命令:sudo update-alternatives——config java将找到所有已安装java版本的完整路径
#9
1
Three Step Process: First: open Terminal->$ whereis java it would give output like this: java: /usr/bin/java /usr/share/java /usr/share/man/man1/java.1.gz
三个步骤的过程:第一步:打开终端->$其中的java是:java: /usr/bin/java /usr/ share/usr / share/man1 /java.1.gz
Second: ls -l /usr/bin/java It would give output like this: lrwxrwxrwx 1 root root 22 Feb 9 10:59 /usr/bin/java -> /etc/alternatives/java
第二:ls -l /usr/bin/java输出如下:lrwxrwxrwxrwx 1根2月9日10:59 /usr/bin/java -> /etc/alternative /java
Third: ls -l /etc/alternatives/java output is the JDK path: lrwxrwxrwx 1 root root 46 Feb 9 10:59 /etc/alternatives/java -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
第三:ls -l /etc/alternative /java输出是JDK路径:lrwxrwxrwxrwxrwxrwx 1根根，2月9日10:59 /etc/alternatives/java -> /usr/ lib/jvm/jvm -8-openjdk-amd64/jre/bin/java
#10
0
on OpenSUSE 13.1/13.2 its: /usr/lib64/jvm/java-1.6.0-openjdk-(version-number)
version-number can be 1.7.x 1.8.x etc. check software manager witch version you have installed...
对于OpenSUSE 13.1/13.2，它的:/usr/lib64/jvm/java-1.6 -openjdk-(版本号)版本号可以是1.7。1.8 x。检查你安装的软件管理员版本……
André
安德烈
#1
287
This depends a bit from your package system ... if the java command works, you can type readlink -f $(which java) to find the location of the java command. On the OpenSUSE system I'm on now it returns /usr/lib64/jvm/java-1.6.0-openjdk-1.6.0/jre/bin/java (but this is not a system which uses apt-get).
这取决于你的软件包系统……如果java命令有效，您可以输入readlink -f $(哪个java)来查找java命令的位置。在我现在使用的OpenSUSE系统上，它返回/usr/lib64/jvm/java-1.6 -openjdk-1.6.0/jre/bin/java(但这不是一个使用apt-get的系统)。
On Ubuntu, it looks like it is in /usr/lib/jvm/java-6-openjdk/ for OpenJDK, and in some other subdirectory of /usr/lib/jvm/ for Suns JDK (and other implementations as well, I think).
在Ubuntu上，它看起来像是在/usr/lib/jvm/java-6- OpenJDK /中，在/usr/lib/jvm/的其他子目录中(我认为还有其他实现)。
Debian是相同的。
For any given package you can determine what files it installs and where it installs them by querying dpkg. For example for the package 'openjdk-6-jdk': dpkg -L openjdk-6-jdk
对于任何给定的包，您都可以通过查询dpkg来确定它安装了哪些文件以及在何处安装它们。例如“openjdk-6-jdk”包:dpkg -L openjdk-6-jdk
#2
35
update-java-alternatives -l
will tell you which java implementation is the default for your system and where in the filesystem it is installed. Check the manual for more options.
将告诉您哪些java实现是系统的默认实现，以及系统在文件系统中的何处安装。查看手册以获得更多选项。
#3
27
$ which java
should give you something like
应该给你一些类似的东西吗
/usr/bin/java
#4
11
This question will get moved but you can do the following
这个问题会被转移，但是你可以做以下的事情
which javac
or
或
cd /
find . -name 'javac'
#5
6
Another best way to find Java folder path is to use alternatives command in Fedora Linux (I know its for Ubuntu but I hit this post from google just by its headline). Just want to share incase people like me looking for answers for fedora flavour.
另一种找到Java文件夹路径的最佳方法是在Fedora Linux中使用替代命令(我知道它是Ubuntu的，但是我从谷歌的标题中找到了这篇文章)。我只是想和大家分享一些关于fedora口味的问题。
To display all information regarding java
显示有关java的所有信息
alternatives --display java
#6
6
Use find to located it. It should be under /usr somewhere:
使用find来定位它。它应该在/usr以下的某个地方:
find /usr -name java
When running the command, if there are too many "Permission denied" message obfuscating the actual found results then, simply redirect stderr to /dev/null
运行该命令时，如果有太多“拒绝权限”消息混淆了实际发现的结果，只需将stderr重定向到/dev/null即可
find /usr -name java 2> /dev/null
#7
2
Simple, try it:
简单,试一试:
It's /usr/local/java/jdk[version]
这是/usr/local/java/jdk(版本)
#8
1
the command: sudo update-alternatives --config java will find the complete path of all installed Java versions
命令:sudo update-alternatives——config java将找到所有已安装java版本的完整路径
#9
1
Three Step Process: First: open Terminal->$ whereis java it would give output like this: java: /usr/bin/java /usr/share/java /usr/share/man/man1/java.1.gz
三个步骤的过程:第一步:打开终端->$其中的java是:java: /usr/bin/java /usr/ share/usr / share/man1 /java.1.gz
Second: ls -l /usr/bin/java It would give output like this: lrwxrwxrwx 1 root root 22 Feb 9 10:59 /usr/bin/java -> /etc/alternatives/java
第二:ls -l /usr/bin/java输出如下:lrwxrwxrwxrwx 1根2月9日10:59 /usr/bin/java -> /etc/alternative /java
Third: ls -l /etc/alternatives/java output is the JDK path: lrwxrwxrwx 1 root root 46 Feb 9 10:59 /etc/alternatives/java -> /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java
第三:ls -l /etc/alternative /java输出是JDK路径:lrwxrwxrwxrwxrwxrwx 1根根，2月9日10:59 /etc/alternatives/java -> /usr/ lib/jvm/jvm -8-openjdk-amd64/jre/bin/java
#10
0
on OpenSUSE 13.1/13.2 its: /usr/lib64/jvm/java-1.6.0-openjdk-(version-number)
version-number can be 1.7.x 1.8.x etc. check software manager witch version you have installed...
对于OpenSUSE 13.1/13.2，它的:/usr/lib64/jvm/java-1.6 -openjdk-(版本号)版本号可以是1.7。1.8 x。检查你安装的软件管理员版本……
André
安德烈