本文介绍了-bash:导出:`“"JAVA_HOME =/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home"":不是有效的标识符的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在尝试在Mac机器上设置Java和Hadoop，并且这样做是使用以下命令:
I am trying to set up Java and Hadoop on my Mac machine, and in doing so, I am using this command:
$ echo export "JAVA_HOME=$(/usr/libexec/java_home)" >> ~/.bash_profile
$ source ~/.bash_profile
但是，当我输入source〜/.bash_profile时，会出现此错误:
However, when I type source ~/.bash_profile it gives me this error:
-bash: export: `"JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home"': not a valid identifier
为什么这么说?
推荐答案
这看起来更正确:
echo 'export JAVA_HOME="$(/usr/libexec/java_home)"' >> ~/.bash_profile
注意:
- 使用标准ASCII引号，而不使用卷曲的智能引号".
- 单引号用于确保在运行
echo之前不评估命令替换，而是将其添加到.bash_profile中.
- Standard ASCII quotes, not curly "smart quotes", are used.
- Single quotes are used to ensure that the command substitution is not evaluated before the
echois run, but instead is added to your.bash_profile.
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