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see if a file is open

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# 1  
Old 11-14-2008
see if a file is open
I need to find out if a file is currently begin written to. I have read that you can use Stat in terminal and you can compare the Access/Modify. How would I go about doing this? I want to put it in a loop so if file is open then keep looking until it is closed. If closed then continue with your script.
# 2  
Old 11-14-2008
The only commands that will check if a file is open are fuser and lsof. lsof is more useful if your system has it.

Code:
who_has_t=$(lsof /path/to/myfile)
if [[ -z $who_has_it ]] ; then
     echo "nobody is using myfile"
else
     echo "file in use"
fi

You will have to see how lsof displays files open for write on your system by playing with it.
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