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Full Discussion: Delete files older than "x" if directory size is greater than "y"
Top Forums Shell Programming and Scripting Delete files older than "x" if directory size is greater than "y" Post 302394093 by vbe on Wednesday 10th of February 2010 12:22:24 PM
Old 02-10-2010
Im no bash expert... (so use with caution as I cant test for you... based on my sh/ksh knowledge
Code:
#!/bin/bash
# you could add some comments on how it should work...
# Its always handy to give some more information and
# with a program that rm, test all parameters are set 
# and are coherent or come out with a short help/syntax
# to display
du -hs $1          # I suppose you mean $1=the input directory?
SIZE=$(du -sk $1)
# where do you get the size form?
while read SIZE ENTRY   # either you echo "enter size..."
                                 # and the read SIZE
do
                                 # or you accpet SIZE as 2nd argument $2
if [ ${SIZE} -gt 200 ];   # which gives you 
                         # if [ $(SIZE) -gt "$2" ] 
then

find $1 -mtime +$2 -exec rm -f {} \;
echo "Files older than $2 days deleted"
else
echo "free Space available"
fi
done



---------- Post updated at 18:17 ---------- Previous update was at 18:14 ----------

Your $2 would become $3...

---------- Post updated at 18:22 ---------- Previous update was at 18:17 ----------

About testing your arguments, this is a start:
Code:
#Test  params
if [ $# -eq 0 ];
then
        echo " params missing!"
        echo "Usage : $0 directory size (in KB)"
        exit 1
else
   if  [ $# -gt 3 ];
   then
        echo " too many arguments"
        echo "Usage : $0 directory size (in KB)  days"
        exit 1
   else
      blah blah
      ...
  fi
fi

Last edited by vbe; 02-10-2010 at 01:28 PM..
 

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LEARN ABOUT LINUX

faxcron

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

NAME

       faxcron - HylaFAX routine maintenance script

SYNOPSIS

       /usr/sbin/faxcron [ -n ] [ -l lastrun ]

DESCRIPTION

       faxcron	is  a  command	script	that  does  routine upkeep tasks in a HylaFAX spooling directory hierarchy.  This script is intended to be
       invoked from cron(8) on behalf of the fax user (often the ``fax'' user is uucp) once a day, with the standard output sent by  mail  to  the
       HylaFAX administrator.  For example, the following crontab might be set up for the fax user:
	 25   23    *	 *    *   sh /usr/sbin/faxcron | mail FaxMaster

       The faxcron script does the following work:

       o  report statistics for facsimile transmitted since the last time faxcron was run.

       o  report statistics for facsimile transmitted in the past week.

       o  report statistics for facsimile received since the last time faxcron was run.

       o  report statistics for facsimile received in the past week.

       o  report any recent calls that failed suspiciously and return the associated trace log;

       o  purge data that is 30 days or older from the remote machine information directory;

       o  delete information that is 30 days or older from session trace log files;

       o  remove files from the tmp directory that are older than 1 day;

       o  remove files in the received facsimile queue that are 7 days or older;

       o  report sites that are currently having jobs rejected; and

       o  force all session log files to be owned by the fax user and kept with protection mode 644.

OPTIONS

       -n	 Forces faxcron to run without updating any files.

       -l lastrun
		 Forces  the  notion  of  the last time that faxcron was run to be lastrun.  The value of lastrun is a date and time string of the
		 form ``MM/DD/YY HH:MM'' (the date(1) format string ``%D %H:%M'').

       -info n	 Set the expiration time for data in the info database to be n days.

       -log n	 Set the expiration time for session log data to be n days.

       -rcv n	 Set the expiration time for files in the received facsimile queue to be n days.

       -tmp n	 Set the expiration time for files in the tmp directory to be n days.

       -mode m	 Set the file protection mode for session logs to m (a command line argument to chmod(1)).

NOTES

       This script requires nawk(1) or gawk(1) and a date (1) program that supports the ``+format'' option.

       If session logs are to be kept private this script must be modified to filter out sensitive information such as calling card numbers.   (It
       should also be run with ``-mode 0600'' so that session log files are not publicly readable.)

FILES

       /var/spool/hylafax		      spooling area
       /var/spool/hylafax/status/lastrun      timestamp of last run
       /usr/sbin/xferfaxstats		      for generating transmit statistics
       /usr/sbin/recvstats		      for generating receive statistics
       /var/spool/hylafax/tmp/faxcronXXXX     temporary file for truncating session logs
       /var/spool/hylafax/tmp/faxlogXXXX      temporary file for logs of failed calls

SEE ALSO

       cron(8), faxq(8), faxgetty(8), faxsend(8), xferfaxstats(8), recvstats(8), hylafax-server(5)

								   May 12, 1996 							FAXCRON(8)
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