如何从流程输出中删除换行符？ [英] How do I delete the newline from a process output?

问题描述

我称git获取顶级目录（根据
是否可以通过一个命令获取git根目录？
）。

I call git get the toplevel dir (according to Is there a way to get the git root directory in one command? ).

(let ((tmpbuffer (get-buffer-create (make-temp-name "git"))))
  (call-process "git" nil tmpbuffer nil "rev-parse" "--show-toplevel")
  (with-current-buffer tmpbuffer
    (with-output-to-string
      (princ (buffer-string))
      (kill-buffer))))

但是返回的字符串中有尾随换行符。我不确定如何摆脱它。

But there's a trailing newline in the string returned. I'm not sure how to get rid of it.

推荐答案

我想你可以

I think you can do

(replace-regexp-in-string "\n$" "" 
              (shell-command-to-string "git rev-parse --show-toplevel"))

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