Bash双引号前的美元字符

发布时间：2020-12-15 19:01:10 所属栏目：安全来源：网络整理

导读：我最近读了一些bash代码,echo $“asdf”,什么是$for？ $“asdf”和“asdf”有什么区别？如 bash manual中所述,它用于本地化： A double-quoted string preceded by a dollar sign (‘$’) will cause the string to be translated according to the current

我最近读了一些bash代码,echo $“asdf”,什么是$for？

$“asdf”和“asdf”有什么区别？

如 bash manual中所述,它用于本地化：

A double-quoted string preceded by a dollar sign (‘$’) will cause the string to be translated according to the current locale. If the current locale is C or POSIX,the dollar sign is ignored. If the string is translated and replaced,the replacement is double-quoted.

（编辑：李大同）

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