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为什么pwd不接受--physical之类的长选项?
当我显示pwd命令手册时,它说--physical支持长选项 $ man pwd PWD(1) User Commands PWD(1) NAME pwd - print name of current/working directory SYNOPSIS pwd [OPTION]... DESCRIPTION Print the full filename of the current working directory. -L, --logical use PWD from environment, even if it contains symlinks -P, --physical avoid all symlinks 但是,当我键入以下内容时,它将失败 $ pwd --physical -bash: …