[英]Finding JDK inside java installation folder on a linux machine
I have been told that in a Linux machine java along with jdk has been installed in /usr/java path. 有人告诉我,在Linux机器中,java和jdk已安装在/ usr / java路径中。 But when I go to /usr/java/ i could so many files along with folder named bin,JRE. 但是当我转到/ usr / java /时,我可以找到这么多文件以及名为bin,JRE的文件夹。 I want to know where is jdk installed here? 我想知道jdk在哪里安装? Is bin folder itself is jdk? bin文件夹本身是jdk吗?
My ls
output for openjdk7 looks like this: 我的openjdk7的ls
输出看起来像这样:
ASSEMBLY_EXCEPTION docs jre man THIRD_PARTY_README
bin include lib src.zip
The jre
folder contains the JRE, the other files are part of the JDK, and not necessary for running Java applications which need only a JRE (eg the javac
compiler in bin
). jre
文件夹包含JRE,其他文件是JDK的一部分,对于仅需要JRE的Java应用程序(例如bin
的javac
编译器)的运行是不必要的。
打开终端并输入“ which java”,这将返回JDK安装路径
I guess you just installed the JDK under /usr/java. 我猜您刚刚在/ usr / java下安装了JDK。 Try run ls /usr/java/bin
, if java
and javac
is in /usr/java/bin, we can conclude that the /usr/java folder IS the JDK folder itself. 尝试运行ls /usr/java/bin
,如果java
和javac
在/ usr / java / bin中,我们可以得出结论,/ usr / java文件夹就是JDK文件夹本身。
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