export `=' not a valid identifier的一般原因

最新推荐文章于 2024-02-11 22:26:19 发布

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本文解决了在使用Linux shell的export命令时，因变量赋值两侧加入空格而导致的错误。详细解释了正确用法，并指出空格会导致命令被错误解析。

2013-12-07 15:15:58| 分类： Linux|举报|字号订阅

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这个问题至少让我损失了2个小时，终于在stackoverflow上找到原因

You cannot put spaces around the = sign when you do:

export foo=bar

Remove the spaces you have and you should be good to go.

If you type:

export foo = bar

the shell will interpret that as a request to export three names: foo, = and bar. = isn't a valid variable name, so the command fails. The variable name, equals sign and it's value must not be separated by spaces for them to be processed as a simultaneous assignment and export.