路径中的 Linux JAVA 但权限被拒绝
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Linux JAVA in path but permissions denied
提问by Deko
Im trying to get JAVA enabled on Intel Edison which uses Yocto (Linux), the problem is that after extracting the zip, im able to check the version, and when putting it into the path, im not able to access java at all due permissions.
我试图在使用 Yocto (Linux) 的 Intel Edison 上启用 JAVA，问题是在解压缩 zip 后，我能够检查版本，当将它放入路径时，我完全无法访问 Java 应有的权限.
Specifically im trying to follow this tutorialbut i get "stuck" at the
具体来说，我试图按照本教程进行操作，但我“卡住”了
. .profile
since next step
从下一步开始
java -version
throws same issue as pasted below, permissions denied or as earlier, java was not found.
抛出与下面粘贴的相同的问题，权限被拒绝或更早，未找到 java。
Heres a quick overview of output:
这是输出的快速概述：
root@dedsec1:~/java/jdk1.7.0_67/bin# ./java -version
java version "1.7.0_67"
Java(TM) SE Runtime Environment (build 1.7.0_67-b01)
Java HotSpot(TM) Client VM (build 24.65-b04, mixed mode)
root@dedsec1:~/java/jdk1.7.0_67/bin# cd
root@dedsec1:~# echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/local/sbin:/usr/sbin:/sbin:/home/root/bin:/home/root/java/jdk1.7.0_67/bin:/home/root/java/jdk1.7.0_67/bin
root@dedsec1:~# ./java -version
-sh: ./java: Permission denied
root@dedsec1:~#
What the hell am i missing ? I have set chmod -x on java but it doesnt seem to affect it.
我到底错过了什么？我已经在 java 上设置了 chmod -x 但它似乎没有影响它。
采纳答案by Srinivasu
sudo chmod a+x /usr/bin/java
sudo chmod a+x /usr/bin/javac
sudo chmod a+x /usr/bin/javaws
sudo chown -R root:root /usr/lib/jvm/jdk1.8.0
回答by Elliott Frisch
root's home folder is not under "/home". Change this
root的主文件夹不在“/home”下。改变这个
/home/root/java/jdk1.7.0_67/bin:/home/root/java/jdk1.7.0_67/bin
to
到
/root/java/jdk1.7.0_67/bin
Also,
还，
/home/root/bin
should probably be
应该是
/root/bin
For similar reasons. When writing a script you can use $HOMEwhich will expand to wherever the user's home directory happens to be. So,
出于类似的原因。在编写脚本时，您可以使用$HOME它将扩展到用户主目录所在的任何位置。所以，
PATH="$HOME/bin:$HOME/java/jdk1.7.0_67/bin"
Edit
编辑
I would not recommend that you link to javain $HOME/bin. Let's set a JAVA_HOMEand move that to the front of the PATH like
我不建议您链接到javain $HOME/bin。让我们设置 aJAVA_HOME并将其移动到 PATH 的前面，例如
export JAVA_HOME=$HOME/java/jdk1.7.0_67
export PATH="$JAVA_HOME/bin:$HOME/bin:$PATH"
回答by Kalenda
You need to be logged in as Root
您需要以 Root 身份登录
. .profile
If that doesn't work you can source your file.
如果这不起作用，您可以获取您的文件。
source .profile
note that source is a synonym of '.' (period).
请注意，source 是 '.' 的同义词。（时期）。
