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12-18-2005
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Checking a file is not being written to
Hello All
I am attempting to write a shell script (bourne shell script) which will copy a tar'd and compressed file from a directory to a staging area but will not know whether the file is still open for write since files are being ftp's to my site at random times during the day. Once I am convinced that the file is stable (not being written to) I will move it to another directory, uncompress it and untar it and then process the data. What is a good way to determine that the file is not being written to (ftp from other site is complete) before I move it out of the directory in which it was ftp'd into. thanks Joe p.s. please respond by email: EMAIL ADDRESS REMOVED |
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12-18-2005
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From the rules you forgot to read:
Quote:
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12-19-2005
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try creating a trigger file
Let the job which ftp's create a trigger file(with some unique pattern) after it is done with the ftp. This would give you an idea of the completion of the file transfer.
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12-19-2005
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This has worked for me in the past. Code:
lsof /path/2/file/getting/modified An exit code of 0 shows file in use. 1 shows no activity on that file. Code:
[/tmp]$ /usr/sbin/lsof ~/temp/test.tar COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME cp 22551 xxxxxxx 4w REG 3,1 202321920 8798213 /private/ora/temp/test.tar [/tmp]$ echo $? 0 [/tmp]$ /usr/sbin/lsof ~/temp/test.tar [/tmp]$ echo $? 1 [/tmp]$ vino |
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01-16-2006
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How To Find File Is Transmig Or Transmtd
Hi vino
please tell what is lsof.when ever i tried to as man lsof it is failing.my actual problm is clearly what kanejm has wrriten. i tried like files=`lsof ${ALTAS_IN_DIR}/IINV*.* 2>/dev/null` after that depends on files value means that is zero or one proceeding(move the files to other directory.). but error is lsof not found.thats i want know about lsof. Regards, MallikarjunaRao |
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01-16-2006
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An error of 'lsof: not found' means that lsof is not available in your path. Check the value of the $PATH variable in your environment. Search for lsof on your box. Then add the path to lsof in the PATH variable in your environment. Here are the steps: 1. Code:
echo $PATH 2. Code:
whereis lsof or (this may take quite a bit longer) Code:
find /usr -name lsof -print 3. Code:
PATH=$PATH:/path/to/lsof; export PATH --EDIT-- mallikarjuna, in your code you are using *.* to pass filenames to lsof. I don't think that lsof can handle more than one filename at a time. Just check that out. --/EDIT-- |
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