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Concurrent writing to file

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# 1  
Old 11-01-2005
Concurrent writing to file
Hi
I have a ksh that can have multiple instances running at the same time.

The script (each instance) uses the SAME log file to write to.

Should this cause a problem or is the ksh clever enough to queue write requests to the file?

Thanks.

GMMIKE
# 2  
Old 11-01-2005
ksh will not do anything special to help you. Use append mode. That is do NOT use >. Use >> instead...
echo something >> logfile

The kernel ensures that multiple processes writing to files in append mode do not step on each other's data.
# 3  
Old 11-01-2005
Great, thanks.
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