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Full Discussion: cron a script and output to file named with date stamp
Top Forums Shell Programming and Scripting cron a script and output to file named with date stamp Post 302518450 by landog on Friday 29th of April 2011 04:31:11 PM
Old 04-29-2011
cron a script and output to file named with date stamp
I can do this from the command line:
Code:
/home/mylogin/tests/script.sh > /home/mylogin/tests/`date +"%Y%m%d"`log.csv

It yields a file named: 20110429log.csv

I would like to schedule with cron to run daily.

when I enter the same line, as above in cron:
Code:
10 16 * * * /home/mylogin/tests/script.sh > /home/mylogin/tests/`date +"%Y%m%d"`log.csv

...it trucates at the first percent sign and yields a cron error:
unexpected EOF while looking for matching ``'
...cron executes:
/home/mylogin/tests/script.sh > /home/mylogin/tests/`date +"

It was suggested that I escape the percent sign:
Code:
10 16 * * * /home/mylogin/tests/script.sh > /home/mylogin/tests/`date +"\%Y\%m\%d"`log.csv

However, that doesn't seem to execute at all. I get no ouitput file and no sign of a cron error.

Any insight would be greatly appreciated.

Thanks,
-dog
Last edited by Yogesh Sawant; 05-01-2011 at 07:10 AM.. Reason: added code tags
 

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LEARN ABOUT REDHAT

amtoc

AMTOC(8)						      System Manager's Manual							  AMTOC(8)

NAME

       amtoc - generate TOC (Table Of Contents) for an Amanda run

SYNOPSIS

       amtoc [ -a ] [ -i ] [ -t ] [ -f file ] [ -s subs ] [ -w ] [ -- ] logfile

DESCRIPTION

       Amtoc generates a table of contents for an Amanda run.  It's a perl script (if you don't have perl, install it first!).

OPTIONS

       -a     The output file name will be label-of-the-tape.toc in the same directory as logfile.

       -i     Display help about amtoc.

       -t     Generate the output in tabular form.

       -f file
	      Write the output to a file ('-' for stdout).

       -s subs
	      Evaluate the output file name from subs, with $_ set to label-of-the-tape.  The -a option is equivalent to -s 's/$_/.toc/'.

       -w     Separate tapes with form-feeds and display blank lines before totals.

       --     Marks the last option so the next parameter is the logfile.

       logfile
	      (use '-' for stdin)

OUTPUT FORMAT

       The standard output has five fields separated by two spaces:

	      #  Server:/partition  date  level  size[Kb]
	      0  daily-05:  19991005  -  -
	      1  cuisun15:/cuisun15/home  19991005  1  96
	      2  cuinfs:/export/dentiste  19991005  1  96
		...
	      103  cuisg11:/  19991005	0  4139136
	      103  total:  -  -  16716288

       In tabular format (-t), this would look like:

		#  Server:/partition	       date	 lev  size[Kb]
		0  daily-05:		       19991005    -	     -
		1  cuisun15:/cuisun15/home     19991005    1	    96
		2  cuinfs:/export/dentiste     19991005    1	    96
		...
	      103  cuisg11:/		       19991005    0   4139136
	      103  total:		       -	   -  16716288

USAGE

       The easiest way to use it is to run amtoc right after amdump in the cron job:

	      amdump DailySet1 ; logdir=`amgetconf DailySet1 logdir` ; log=`ls -1t $logdir/log.*.[0-9] | head -1` ; amtoc -a $log

       which will generate /etc/amanda/DailySet1/tape_label.toc.  You may also want to call amtoc after an amflush.

SEE ALSO

       amanda(8), amdump(8), amflush(8), amgetconf(8), cron, perl

AUTHOR

       Nicolas MAYENCOURT <Nicolas.Mayencourt@cui.unige.ch>
       University of Geneva/Switzerland

																	  AMTOC(8)
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