[FFmpeg-user] background process getting terminated

[focus television]

Hi,
I am using (nohup ffmpeg -i "rtmp://localhost:1935/base2 
Playpath=mam1.stream  live=1" -vcodec copy -b:v 700k -c:a copy  -f flv 
rtmp://localhost/mal1/mam1 ;)&
I am inputting about 15 repeated streams in the same .sh file in ubuntu

But after some time it is getting terminated. Not sure if it is due to 
the bug nohup file or because i close the terminal session.
I tried screen and background but still the process terminates after 
some hours.
Not sure what is wrong.
I dont want the log file and want to run it in background so that it 
doesnt get terminated when i close ssh.

Any idea?