为什么PS1没有用git分支名称更新? [英] Why PS1 is not updated with the git branch name?

问题描述

PS1="\\w (`git branch | grep '^*' | cut -b 3-100`)$ "

我将PS1设置为如上所述，但是在我使用 git checkout 更改分支或使用 cd .该如何解决?

I set my PS1 as above, but it will not update the branch name in the prompt after I change the branch with git checkout, or change the repository with the cd. How to fix this?

推荐答案

设置(一次)设置 PS1 而不是显示提示时，将对反引号引起来的位进行评估.使用单引号将扩展保存为后一个事件:

The backtick-quoted bit is evaluated when PS1 is set (once), not when the prompt is displayed. Use single quotes to save the expansion for the latter event:

PS1='\w (`git branch | grep "^*" | cut -b 3-100`)$ '

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