在 Mac OS X zsh 上打印后删除尾随新行答案

【问题标题】：Removing trailing new line after printing on Mac OS X zsh在 Mac OS X zsh 上打印后删除尾随新行
【发布时间】：2013-08-15 08:15:38
【问题描述】：

我正在尝试打印标准输入，但在使用 cat、grep、awk 等（Mac OS X zsh）后出现的尾随新行不显示不幸的是， echo -n 不起作用，它会打印一些奇怪的字符。

你对这件事有什么想法吗？谢谢。

【问题讨论】：

标签： macos shell line trailing

【解决方案1】：

来自 man zshoptions：

PROMPT_SP <D>
              Attempt  to  preserve  a  partial  line (i.e. a line that did not end
              with a newline) that would otherwise be covered up by the command prompt
              due to the PROMPT_CR option.  This works by outputting some
              cursor-control characters,
              including a series of spaces, that should make the terminal wrap to the
              next line when a partial line is present (note that this is only 
              successful if your terminal has automatic margins, which is typical).

              When a partial line is preserved, by default you will see an inverse+bold
              character at the end of the partial line:  a "%" for a normal user or a
              "#" for root.  If set, the shell parameter PROMPT_EOL_MARK can be used
              to customize how the end of partial lines are shown.

              NOTE: if the PROMPT_CR option is not set, enabling this option will have
              no effect.  This option is on by default.

将此添加到您的 .zshrc 以更改行为。请注意，这是一项设计功能，而不是错误。

export PROMPT_EOL_MARK=''

【讨论】：