bash - Bash：在 SSH 命令中使用 EXPORT

Question

执行此命令时：

user@local:~ >ssh user@remote " export myvar=myvalue ; echo myvar=$myvar ; "

我得到输出：

myvar=

直接在远程机器上运行时，我得到了预期的结果：

user@remote:~ > export myvar=myvalue ; echo myvar=$myvar ;

输出：

myvar=myvalue

那么如何在 ssh 命令中设置变量呢？

Answer 1

That's because you're using double quotes, so the variable is being expanded on your local machine before ssh is even invoked. Use single quotes:

ssh user@remote 'export myvar=myvalue ; echo myvar=$myvar'