[英]Run python script in background on server and get script output
So, I need to run a python script on a server but I want the script to output whatever it outputs into a file so I can check what it done after it finished.所以,我需要在服务器上运行 python 脚本,但我希望脚本到 output 输出到文件中,以便我可以检查它在完成后做了什么。 However I also need the script to continue running if the ssh tunnel to the server gets interrupted or closed.
但是,如果到服务器的 ssh 隧道中断或关闭,我还需要脚本继续运行。 Here is what I know:
这是我所知道的:
python3 run.py >> out.txt
will output correctly.将 output 正确。
nohup python3 run.py
will output correctly and be safe from interruption.将 output 正确并避免中断。 it will also output into a nohup.out but will not run in the background of the current session (thus blocking me from doing anything else).
它还将 output 进入 nohup.out 但不会在当前 session 的后台运行(从而阻止我做任何其他事情)。
So I would think所以我会认为
nohup python3 run.py >> out.txt &
would work for me but it does not.会为我工作,但它没有。
I've tried different combinations of what I want but just cannot get it to work... once I add &
it appears the output to the files just stops going.我已经尝试了我想要的不同组合,但无法让它工作......一旦我添加
&
它似乎 output 文件就停止了。 I have no clue why though.我不知道为什么。 any help appreciated!
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What you are looking for is been already answered here您正在寻找的内容已经在这里得到解答
https://askubuntu.com/questions/8653/how-to-keep-processes-running-after-ending-ssh-session https://askubuntu.com/questions/8653/how-to-keep-processes-running-after-ending-ssh-session
You need to use tmux
to keep it running in background您需要使用
tmux
使其在后台运行
The easiest way is to run your command in the background with &
.最简单的方法是使用
&
在后台运行您的命令。 Then just write:然后只写:
disown -a
for anyone experiencing similar issues there is problem with nohup and python output buffering I guess.对于遇到类似问题的任何人,我猜 nohup 和 python output 缓冲存在问题。
see: Nohup is not writing log to output file .请参阅: Nohup 未将日志写入 output 文件。
but the fix is:但解决方法是:
nohup python3 -u run.py >> out.txt &
(Answer provided by @VPfB) (@VPfB 提供的答案)
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