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I have a python app in a remote server that i need to debug, when I run the app locally it prints some debug information (including python tracebacks) that i need to monitor.

Im trying to redirect all the output of the program to a file so I can monitor the remote output using tail -F, here I found the following command to redirect the outputs:

ssh root@myserver 'nohup python /root/python/run_dev_server.py &>> /var/log/myapp.log &'

This gets me almost exactly what i want, loggin information and python tracebacks, but i do not get any of the information displayed using print from python, which i need.

so I also tried this command:

ssh root@myserver 'nohup python /root/python/run_dev_server.py 2>&1 >> /var/log/myapp.log &'

this logs the output of the program from print and also the logging information, but all the tracebacks are sent to my local terminal where i excecuted the the script and my script gets stuck waiting for any exception to happen in the remote program.

Is there a way I can capture all the information produced by the app without stopping my script?

Thanks in advance for any suggestion.

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up vote 1 down vote accepted

You almost had it... However, all three pipes need to be re-directed to background a process via ssh. Std In, Std Out, Std Err. Thus:

nohup /root/python/run_dev_server.py &>/var/log/my.app.log </dev/null &

note: &> is the equivalent of redirecting std out and std error at the same time. In other words, it is the shortened version of ' >> /var/log/myapp.log 2>&1'

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Try:

$ ssh  -t root@192.168.113.67 "tail -f /var/log/messages" | tee -a mss.txt
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