当通过cron从脚本调用时，git不会产生输出
我有一个脚本git-Test转到本地git repo并调用git Shortlog以跟踪最近的更改。为了进行测试目的，我只使用了以下行：
#!/bin/bash
cd /myrepo.git
result="$(/usr/bin/git shortlog -3)"
echo "$(date):$result" >> /tmp/git-log
crontab条目是
* * * * * /home/username/git-test >> /tmp/cron-output 2>&1
在所有脚本工作之后都从控制台和从Cron开始使用的，可以执行简单的ls -lh而不是git命令。但是它没有用git命令从cron呼叫。因此问题必须是git。
我尝试了：
- 从终端调用脚本 - ＆gt;做得很好，
- 从上面的 - ＆gt;在
/tmp/git-log中没有git输出，也没有/tmp/cron-o-Output中的 - 错误）“ 而不是
$（/usr/bin git shortlog -3）- ＆gt;做 - cron的良好调用脚本，直接用
git shortlog -3＆gt直接写入文件＆gt;/tmp/git-log- ＆gt;/tmp/git-log - 将git
cd /myrepo.git; git shortlog -3＆gt;＆gt;＆gt; /tmp/cron-ofput
可能是什么？
任何想法
I've got a script git-test going to a local git repo and calling git shortlog to keep track of recent changes. For testing purposes, I just used these lines:
#!/bin/bash
cd /myrepo.git
result="$(/usr/bin/git shortlog -3)"
echo "$(date):$result" >> /tmp/git-log
the crontab entry is
* * * * * /home/username/git-test >> /tmp/cron-output 2>&1
After all the script IS WORKING called from console and IS WORKING from cron with doing a simple ls -lh instead of the git command. But it IS NOT WORKING called from cron with the git command. So the problem must be git.
I tried:
- calling script from terminal -> doing fine, getting git short logs
- calling script from cron, like above -> no git output in
/tmp/git-logand no errors in/tmp/cron-output - calling script from cron, but doing a
$(ls -lh)"instead of$(/usr/bin git shortlog -3)-> doing fine - calling script from cron, writing to a file directly with
git shortlog -3 >> /tmp/git-log-> no git output in/tmp/git-logand no errors in/tmp/cron-output - putting the git
cd /myrepo.git;git shortlog -3 >> /tmp/cron-output 2>&1directly in crontab -> no output and no errors in/tmp/cron-output
Any Ideas what the problem might be?
Thank you!
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Git Shortlog具有怪异的“功能”。 它已记录为 ，但是“功能” 感到惊讶的是，它经常被错过：您从crontab运行的stdin已将其重定向到文件（嗯，
/dev/dev/null，但“不是终端”），因此您可以点击此功能：git Shortlog读取从stdin登录，这是空的，因此其输出为空。治愈方法是为其提供适当的
git log -pretty =简短输出，如文档中的概述行所示。（为什么“功能”？我不知道。我根本不了解这种行为。）
git shortloghas a weird "feature". It is documented, right up front in the manual page, but the "feature" is so surprising that it is often missed:Your run from crontab has stdin redirected to a file (well, to
/dev/null, but "not a terminal") so you hit this feature:git shortlogreads the log from stdin, and that's empty, so its output is empty.The cure is to feed it the appropriate
git log --pretty=shortoutput, as seen in the SYNOPSIS line in the documentation.(Why the "feature"? I have no idea. I don't understand this behavior at all.)