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Top Forums Shell Programming and Scripting How to make sure a file is uploaded in its entirety Post 302248441 by ph0enix on Friday 17th of October 2008 04:27:54 PM
Old 10-17-2008
How to make sure a file is uploaded in its entirety

Hi, I have a client who uploads files to my FTP server on a regular basis. Instead of checking the server all the time, I wrote a script that e-mail me to let me know that there is a new file and attaches is it in the e-mail (they're all small compressed archives). The potential issue with the following script is that it will move a file to the processed directory even if it's not fully downloaded. I'm scheduling the script to run every hour on the hour but if the client is in the middle of uploading a file when it runs, I may only get a part of it in the e-mail. Is there a way to make sure that the files isn't being modified before moving it?

Code:
sdir="/home/sftp/"
fc=`ls $sdir |wc -l`
fn=`ls -t $sdir |head -1`
if [ "$fc" -ne 0 ];then
        while [ "$fc" -ne 0 ]
                do
                        ts=`date +%Y%m%d_%H%M%S`
                        ( echo "New file attached"
                                uuencode $sdir$fn $fn
                        ) | mailx -s "New file attached" "you@me.com"
                        mv $sdir$fn /home/sftp_processed/[$ts]$fn
                        fn=`ls -t $sdir |head -1`
                        fc=`ls $sdir |wc -l`
                done
else
        echo "No files found"
fi

Thank you! Smilie
 

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FAXSETUP(8C)															      FAXSETUP(8C)

NAME
faxsetup - setup a machine for use with HylaFAX SYNOPSIS
/usr/sbin/faxsetup [ -client ] [ -server ] [ -with-VAR[=value] ] DESCRIPTION
faxsetup is an interactive shell script that does the necessary setup work to configure a client or server machine for the HylaFAX soft- ware. faxsetup must be run on every HylaFAX server machine before the software will function-if a HylaFAX server program or script is invoked before faxsetup is run, the command will abort with a message that says to run faxsetup. faxsetup may optionally be run on a HylaFAX client machine to verify the configuration of the software. By default faxsetup checks a machine for use both as a HylaFAX client and server. Client-specific checks include: o the installation of client programs and data, o the installation of the Adobe Font Metric (AFM) information files used by the HylaFAX text formatting support. Server-specific checks include: o the installation of server programs and data, o the existence of the UUCP lock file directory, o the installation of the TIFF software tools, o the configuration of the getty programs invoked for data and voice calls, o the pathnames for various system programs used by server shell scripts, o proper support for FIFO special files, o proper installation of a POSTSCRIPT RIP, o definition of a ``fax'' user, o definitions for the ``hylafax'' and ``snpp'' services, o startup of the HylaFAX server processes: faxq(8C) and hfaxd(8C), o definition of a ``FaxMaster'' mail alias for reporting server problems. For server machines faxsetup also creates two files that are required by the HylaFAX command scripts. One file contains master configura- tion parameters and the other contains various definitions used by scripts such as faxaddmodem(8C) that communicate with modems. OPTIONS
-client Do client-specific consistency checks. -server Do server-specific consistency checks. -with-VAR[=value] Override the default definition for the configuration parameter named VAR; optionally specifying a new value (if no value is specified then ``yes'' is used). This option is especially useful to override the default settings for the POSTSCRIPT inter- preter package to use (e.g. ``-with-PS=dps''), the spooling directory (``-with-DIR_SPOOL=/mumble''), the directory where the tool applications of TIFF software distribution are located (``-with-TIFFBIN=/usr/freeware''), etc. A complete list of the possible parameters can be found by looking at the contents of the faxsetup shell script; many of these configuration parameters are also described in the online documentation -help Print a help message and terminate. -quiet Do not print verbose messages to the terminal. -verbose Print informative messages to the terminal (default). BUGS
faxsetup does not query a modem to find out its capabilities when invoking the faxmodem program to setup a server in a send-only configura- tion; it may be necessary to run faxmodem manually. FILES
/var/spool/fax/etc/setup.cache master configuration parameters /var/spool/fax/etc/setup.modem modem-related configuration support Consult hylafax-server(5F) for a complete discussion of the structure and content of the spooling area. SEE ALSO
hylafax-server(5F), hylafax-config(5F), faxq(8C), faxgetty(8C), faxmodem(8C), faxconfig(8C), faxsend(8C) August 26, 1996 FAXSETUP(8C)
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