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Old 10-11-2006, 06:06 PM   #1
Xolotl
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How do I save a name-date changing file?


I just set my first CRON job to run a backup using DUMP.

I want the name of my backup to be 'BKUPMMDDYY'
where:
MM= month
DD= day
YY= year

So, how can I get this pickup the appropriate date? Do I need to create an script?

Thanks.
 
Old 10-11-2006, 06:26 PM   #2
gilead
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The following should work (use the variable $OUTPUTNAME as the file name):
Code:
OUTPUTNAME="BKUP`date '+%m%d%y'`"
 
Old 10-12-2006, 05:58 PM   #3
Xolotl
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Gilead, thanks for your help.

When I ran the command from the console, it works just fine:
[root@wxyz: root] $ /sbin/dump -0u -a -f /temp/dbkup/"bkup_`date '+%m%d%y'`" /home


But, when I run it from my crontest, I get a syntax error:


MAILTO=myusername@mydomain.com
00 12 * * * /sbin/dump -0u -a -f /temp/dbkup/"bkup_`date '+%m%d%y'`" /home



This is what the cron deamon emails to me:

Syntax error: EOF in backquote substitution


Do you have any idea why is this happening?
 
Old 10-12-2006, 07:04 PM   #4
gilead
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It could be that the date command isn't in the path used by the cron daemon. Can you try it with /usr/bin/date instead (or whatever the path is to date on your system)?
 
Old 10-13-2006, 07:25 PM   #5
Xolotl
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I found several paths and try them all with no luck. I am actually running FreeBSD (6.1), but this should not be too different, right?

Thanks.
 
Old 10-14-2006, 03:21 AM   #6
gilead
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I'd have thought the operation would be the same since it works at the command line. Can you try putting the command into a script and running the script from cron (I don't know how BSD parses the command to be run in cron)?
 
Old 10-14-2006, 03:40 AM   #7
Tinkster
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And on an unrelated note: if you want to be able to sensibly
sort your backup-files later on I'd recommend ymd instead of mdy.


Cheers,
Tink
 
Old 10-20-2006, 05:28 PM   #8
Xolotl
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Thanks guys! I end up writing a little script and it worked just fine that way.
 
  


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