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Top Forums Shell Programming and Scripting Building a better mouse trap, or How many lines of code does it take to trap a mouse? Post 302070681 by mph on Thursday 6th of April 2006 03:04:40 PM
Old 04-06-2006
Perderabo,

Quote:
Not sure that I understand. Is this one directory or a directory tree? How the the files get removed? Anyway...
This is a directory tree /ftp. Under this there are the users and their incoming and outgoing directories. Each user has their own directory for security reasons. Our customers don't want their data availible to the wrong vendors.
Files get removed by another daily cron job that finds files older than 10 days. The date can't be trusted as far as how many minutes old they are. So, find works fine for removing old the files. If they're transferred via CIFS it holds the creation date previous to the transfer. That's why I use the -cmin. It seems to work well and uses the access time of the transfer. But I think that's where some files fall through. I had to setup ntp on the server due to clock variations between the server and the clients causing problems with file times. Another reason to use the "find all files and diff them" logic.
Quote:
I would loop through all the files getting name and size (if date cannot be trusted, ignore it). Add name and size to a little database somewhere, timestamping this addition. Or if the entry is present, update size and timestamp. Then loop through database and find entries with old timestamps; process these; remove from database and directory (removal not possible? --- mark as processed in the database.)
This is simular to what (I guess) I was trying to say with the idea I was looking into. That is to say, find all the files under /ftp/*/outgoing and diff them for additions against the file list built 5 minutes ago. Using the diffed file names, the "database" would simply be a temp file containing the name and size. Grep for the file, awk the $NF for the size and compair till they're the same, sleeping for bit between checks to avoid frantic looping. When the run is finished delete the temp database. Removed files won't be an issue, since I'm only looking for added files between runs. If the file reapears, there's usually a good reason for it (corrupted IGES files, etc...) and the vendor should be re-notified.

I hope this makes sense. My fingers are too well connected to my brain.
 

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SCROLLKEEPER-UPDATE(8)					      System Manager's Manual					    SCROLLKEEPER-UPDATE(8)

NAME
scrollkeeper-update - identify new, modified, or removed OMF files and update the scrollkeeper databases SYNOPSIS
scrollkeeper-update [ -v ] [ -q ] [ -n ] [ -p database-directory ] [ -o omf-directories ] DESCRIPTION
This synchronizes the scrollkeeper database with the OMF directory. It searches the scrollkeeper OMF directory to identify if any files were added, removed, or modified and updates its internal database files to reflect any changes. This utility is generally executed as the last step of installation, after the OMF file is copied into place. It is also typically the last step of uninstallation, after the OMF file is removed. Using this, an administrator can easily manually install and uninstall docu- ments into the database. It can also be run to guarantee the database is fully up-to-date. Note that because scrollkeeper-update is normally run during installation and its output is typically seen by users, non-critical warnings and errors such as those caused by invalid metadata are written to the log file instead of to the terminal. Developers should use the log file to identify any problems. OPTIONS
-v Be verbose: Say which scrollkeeper-install and scrollkeeper-uninstall commands are being run to bring the database up to date. -q Run in quiet mode, suppressing output of all but the most serious warning and error messages to STDOUT. Note that most output to the log file will be unchanged. -n Use the network to retrieve the DTD if it is not available via the system's XML catalog. -p database-directory Use database-directory as the directory for the scrollkeeper database rather than the usual one obtained by running scrollkeeper- config --pkglocalstatedir. -o omf-directories Examine the directories named in omf-directories rather than the one usual one obtained by running scrollkeeper-config --omfdir (or specified in the OMF_DIR environment variable if set). The omf-directories should be a colon-separated list of directories. ENVIRONMENT
OMF_DIR If no -o option is specified, this variable overrides the scrollkeeper-config-provided OMF directory. It should be a colon-sepa- rated list of directories. FILES
/var/lib/scrollkeeper/scrollkeeper_docs /var/lib/scrollkeeper/TOC/<docnumber> /var/lib/scrollkeeper/<locale>/scrollkeeper_cl.xml /var/lib/scrollkeeper/<locale>/scrollkeeper_extended_cl.xml /var/log/scrollkeeper.log AUTHOR
Laszlo Kovacs <laszlo.kovacs@sun.com> Dan Mueth <d-mueth@uchicago.edu> SEE ALSO
scrollkeeper-config(1), scrollkeeper-gen-seriesid(1), scrollkeeper.conf(5), scrollkeeper(7), scrollkeeper-preinstall(8), scrollkeeper- rebuilddb(8) scrollkeeper Dec 5, 2001 SCROLLKEEPER-UPDATE(8)
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