重音(`)符号在终端中有什么作用
提问于 2017-03-06 06:31:32
当我在终端中输入重音(`)符号时，结果如下所示。
>
>
>重音符号(`)是做什么用的？
回答 1
Stack Overflow用户
回答已采纳
发布于 2017-03-06 06:38:39
显示'>‘是因为shell’等待‘右引号。从手册页：
Command Substitution
Command substitution allows the output of a command to replace the com-
mand name. There are two forms:
$(command)
or
`command`
Bash performs the expansion by executing command and replacing the com-
mand substitution with the standard output of the command, with any
trailing newlines deleted. Embedded newlines are not deleted, but they
may be removed during word splitting. The command substitution $(cat
file) can be replaced by the equivalent but faster $(< file).页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持
原文链接：
https://stackoverflow.com/questions/42618946
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