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how can i check if text file is closed ?

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Top Forums Shell Programming and Scripting how can i check if text file is closed ?
# 8  
Old 07-03-2006
Quote:
Originally Posted by umen
on sunos solaris when i do fuser -u myfile.txt
the output is :
myfile.txt:

what is wrong here?
pls read the 'man' pages first!!!!
# 9  
Old 01-12-2007
Quote:
Originally Posted by tansha
Hello,
content deleted by reborg

These kind of "words" are strictly not permitted in the forum.

Moderators! Please --->
Last edited by reborg; 01-12-2007 at 05:35 PM..
# 10  
Old 01-12-2007
May be helpful : Thread Want to execute rest of the script after the file is ready ...


Jean-Pierre
# 11  
Old 01-12-2007
Quote:
Originally Posted by jim mcnamara
Code:
#!/bin/ksh
in_use=$(fuser -u /path/to/file/filename)
if [ ${#in_use} -gt 0 ] ; then
   echo "file in use"
else
   echo "file not in use"
fi

I have few objections with the above!

on the same node with two different sessions,
I ran the following

session I
>
Code:
while :
do
echo "a" > file1
done

session II
>
Code:
while :
do 
fuser -u file1; echo $?
sleep 1
done


the output really alternates between being used -> not being used


from the man pages of fuser,
fuser returns a non-zero return code if none of the specified files is
accessed or in case of a fatal error. If at least one access has been
found, fuser returns zero.
# 12  
Old 01-12-2007
Hi Aigles,

I tried your script, but it is always returning me the result as " File is available", though the file is still being written to. It is a large file which takes quite some time to get ready.

So how can I know when the file is completely ready?

Thanks again for you assistance
# 13  
Old 01-12-2007
lsof (to my knowledge) isn't part of non-GNU coreutils. It would work just fine for this problem.

My version of the man page for fuser states "open files or active file structures"
meaning that until the data is actually physically written to disk, fuser could return 0.
Which is what you see. fuser is really meant more for sysadmin use than just playing with open files like lsof does.
# 14  
Old 01-12-2007
Hi Jim,

when I run lsof, all I could get is the following:

lsof: WARNING: compiled for AIX version 5.1.0.0; this is 5.2.0.0.

So the next step would be to update my version for lsof for AIX 5.2.0.0 ??? Unfortunately at this stage there is no plan for any system updates and I am one of the developpers team, so any other workaoround solution please?

Thanks again.
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