终端PS1修复中的断线 [英] Break line in terminal PS1 fix

问题描述

我有以下代码可以为终端着色:

I have this code to color my terminal:

export PS1="\e[1;30m\][\e[\e[1;30m\]\e[1;33m\] \u@\H \[\e[1;32m\]\w\[\e[0m\] \e[1;30m\]]\n[\[ \e[1;31m\]\T\[\e[0m\]\e[1;30m\] ] > \e[37m\]"

但是我有一个问题，当文本应该在新行中时，它将覆盖第一行.

But I have one problem, when text should be in the new line it overwrites the first line.

示例:

推荐答案

为了让bash找出您的提示占用了多少屏幕空间(以及实际的命令行从何处开始)，您必须将非-在\[...\]中打印提示的某些部分.通常，这意味着像\e[1;30m这样的转义序列需要写为\[\e[1;30m\].您的提示符中有一些\[和\]，但是它们放在错误的位置，这使bash非常困惑.查找提示中所有与您一样复杂的打印和非打印部分并非易事，但我认为这样做是正确的:

In order for bash to figure out how much screen space your prompt takes up (and therefore where the actual command line starts), you have to enclose the non-printing parts of the prompt in \[...\]. Mostly, that means escape sequences like \e[1;30m need to be written as \[\e[1;30m\]. You have some \['s and \]'s in your prompt, but they're in the wrong places, which is making bash very confused. Finding all the printing and non-printing parts of a prompt as complex as yours is not trivial, but I think this gets it right:

export PS1='\[\e[1;30m[\e[\e[1;30m\e[1;33m\] \u@\H \[\e[1;32m\]\w\[\e[0m\] \[\e[1;30m\]]\n[ \[\e[1;31m\]\T\[\e[0m\e[1;30m\] ] > \[\e[37m\]'

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