docs(variable): fix error#62
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CyrusYip wants to merge 1 commit intowangdoc:masterfrom
CyrusYip:patch-1
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docs(variable): fix error#62CyrusYip wants to merge 1 commit intowangdoc:masterfrom CyrusYip:patch-1
CyrusYip wants to merge 1 commit intowangdoc:masterfrom
CyrusYip:patch-1
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`ls` 文件不存在返回值为 2，测试代码： ```bash ❯ docker run -i -t --rm ubuntu root@5e697f8da527:/# echo $0 bash root@5e697f8da527:/# ls sssssssssssssssss ls: cannot access 'sssssssssssssssss': No such file or directory root@5e697f8da527:/# echo $? 2 root@5e697f8da527:/# bash --version GNU bash, version 5.0.17(1)-release (x86_64-pc-linux-gnu) ```
Contributor
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操作失败时，返回一个非零值，大多数系统是1。 |
Contributor
Author
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@ruanyf 请问什么系统返回 1 的？可以举些例子吗？ |
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@CyrusYip 比如mac就返回1 |
Contributor
Author
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@zackzhangkai 多谢告知！ |
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ls文件不存在返回值为 2，测试代码：