Date: Mon, 6 May 2002 15:21:17 -0400 From: "Steve Bertrand" <steve@echelonmedia.com> To: <freebsd-questions@freebsd.org> Subject: Backup script.. Message-ID: <POEIKDACFKKMEPHGPJLMGEHOCAAA.steve@echelonmedia.com>
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I spent all weekend documenting and securing my network which contains 3 FreeBSD servers. My internal network server which is a PDC running Samba is being used as a central backup controller. I have written crontabs for all of the BSD servers to collect all critical config files and store them in a backup directory for the backup controller to collect later using scp for dumping to tape. Although I have been able to automate 90% of this operation, I would like to have each server check to see if the directory containing it's backup has changed since the previous backup 24 hours earlier, if not, skip the backup. I am off site right now, so this may not be exactly what I was working with, and this is not my entire backup script, just the test section for comparing sizes ####################### #`snip from backup script //testing only #!/bin/sh size1=`du -s /tmp/svr3bkp` size2=`du -s /path/to/live/dir` overall='$size1 = $size2' /* am I using the proper 'equal to' operand here? */ if ! [ $overall] then dosomething else dosomethingelse fi ################## I get an error to the effect of 'Command not found' or similar. Am I on the right track? I used to do some C++ programming and find this to be very similar, but I still need to get used to some of the operators and how to implement commands into the script. As far as I remember, == would be the 'equal to' operand, but I can't find documentation to state otherwise. Are there commands used to test the differences in file/dir sizes or mod dates that I can use as a conditional to perform other commands? Tks, Steve --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.351 / Virus Database: 197 - Release Date: 4/19/2002 To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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