Git：无法重定向/解析'git fetch --dry-run'命令的输出 [英] Git: unable to redirect/parse the output of 'git fetch --dry-run' command

问题描述

控制台上打印的 git fetch 命令的输出消息的特别之处是什么？我无法使用 grep ， xargs 等等，也无法将输出重定向到文件。 。
$ b

注意：我使用 git fetch --dry-run 命令

  [sangeeth @ localhost santest-code] $ 
 [sangeeth @ localhost santest-code] $ git fetch --dry-run> / tmp / 1 
从ssh：//git.code.sf.net/p/santest/code 
 9f068d0..2b9dc4e master  - >源/主
 [sangeeth @ localhost santest-code] $ 
 [sangeeth @ localhost santest-code] $ cat / tmp / 1< =无数据
 [sangeeth @ localhost santest-code ] $ 
 [sangeeth @ localhost santest-code] $ git fetch --dry-run | grepssh< = output同时包含两行
从ssh：//git.code.sf.net/p/santest/code 
 9f068d0..2b9dc4e master  - >源/主
 [sangeeth @ localhost santest-code] $ 
 [sangeeth @ localhost santest-code] $ git --version 
 git版本1.7.11.4 
 [sangeeth @ localhost santest-code] 
  

我试图解析 git的输出抓取--dry-run 命令来检查本地（ master ）分支是否与远程（<$ c $）是最新的c> origin / master ）分支。

解决方案

git的一些状态输出到 STDERR 。如果你想通过它，将STDERR合并到STDOUT中，如下所示：

  git fetch --dry-run 2>& 1 | grep ssh 
  

What is special about the output message of git fetch command that is printed on the console? I'm not able to use grep, xargs, etc. Not able to redirect the output to a file also..

Note: I'm using git fetch --dry-run command

[sangeeth@localhost santest-code]$ 
[sangeeth@localhost santest-code]$ git fetch --dry-run > /tmp/1
From ssh://git.code.sf.net/p/santest/code
   9f068d0..2b9dc4e  master     -> origin/master
[sangeeth@localhost santest-code]$ 
[sangeeth@localhost santest-code]$ cat /tmp/1              <= no data
[sangeeth@localhost santest-code]$  
[sangeeth@localhost santest-code]$ git fetch --dry-run | grep "ssh"     <= output has both lines
From ssh://git.code.sf.net/p/santest/code
   9f068d0..2b9dc4e  master     -> origin/master
[sangeeth@localhost santest-code]$ 
[sangeeth@localhost santest-code]$ git --version 
git version 1.7.11.4
[sangeeth@localhost santest-code]$ 

I'm trying to parse the output of git fetch --dry-run command to check whether the local (master) branch is up-to-date with the remote (origin/master) branch.

解决方案

Some of git's status output goes to STDERR. If you want to grep through it, merge STDERR into STDOUT like so:

git fetch --dry-run 2>&1 | grep ssh

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