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Full Discussion: Route the logs to different file other than nohup.out
Top Forums UNIX for Dummies Questions & Answers Route the logs to different file other than nohup.out Post 302175428 by bakunin on Friday 14th of March 2008 01:15:48 AM
Old 03-14-2008
If your job is restarted every day you can use a variable in the logfile name (check the manpage for the format on "date", i have no manpage at hand writing this):

Code:
date="$(date +'%Y%m%d')"
nohup /your/job >logfile.${date} 2>&1 &

If the job runs permanently you will have to create a job which copies the contents of the logfile to another file and then clears the logfile. This job can be run from cron daily. The following is just a sketch:

Code:
#! /bin/ksh

date="$(date +'%Y%m%d')"

if [ -w /the/file/to/trim ] ; then
     cat /the/file/to/trim > /some/path/logfile.${date}
     cat /dev/null > /the/file/to/trim
fi

exit 0

The reason why i do not delete the file but overwrite it with an empty stream ("cat /dev/null") is to preserve the inode number. Some processes do not like having the inode numbers of files they are writing to changed.

I hope this helps.

bakunin
 

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LEARN ABOUT DEBIAN

amtoc

AMTOC(8)						  System Administration Commands						  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 daily ; logdir=`amgetconf daily logdir` ; log=`ls -1t $logdir/log.*.[0-9] | head -1` ; amtoc -a $log

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

SEE ALSO

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

       The Amanda Wiki: : http://wiki.zmanda.com/

AUTHORS

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

       Stefan G. Weichinger <sgw@amanda.org>

Amanda 3.3.1							    02/21/2012								  AMTOC(8)
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