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Difference between & and nohup &

 
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Top Forums UNIX for Dummies Questions & Answers Difference between & and nohup &
# 1  
Old 04-16-2015
Difference between & and nohup &
Hi All,

Can anyone please help me understanding what the difference between the below two?

Code:
1. script.sh &
2. nohup script.sh &

# 2  
Old 04-16-2015
executing script.sh with nohup is not linked to your session, making a big difference in the usage as its execution is independent of your connection, you use it for batches you execute mostly with cron...
In other words when you leave and have a job running without nohup normally at your exit prompt you will be reminded with a message of the type " you still have jobs running" having to type exit again only this time you have killed those, running without nohup...
# 3  
Old 04-16-2015
nohup closes and redirects stdin, stdout, and stderr before running the program. This prevents script.sh from accidentally hogging the terminal device -- that's liable to make an ssh session hang instead of quit.
 
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