echo restoring unused_space.sh
cat > unused_space.sh << 'XxXxX-EOF-XoXoX'
#!/bin/ksh
#======================================
#
# 			Have you ever needed space really badly and not had any drives available.
#			This program will show you any space left on the volumes that you are already using.
#
# unused_space.sh	Program to show you which chunks have space left.
# 			change the MAXCHUNKSIZE and MINWASTED variables to 
#			values that work at your site. We use 2048000 as the max chunksize
#			We have logical volumes so we do not typically have an offset.
#			MinWasted is useful for skipping offsets.
#
#=====================================
#
# Written by: Curtis Crowson
# BellSouth Advertising & Publishing
# crowson.curtis@bapco.bls.com
#
#====================================
#
# Standard Disclaimers for software apply email if you have an issue.
# Use this at your own risk.
# Copyright July 6, 1999 by Curtis Crowson
# Use this under the FSF license.
#
#===================================

MAXCHUNKSIZE=2048000	# set to the max chunk size that you usually use. 
MINWASTED=0		# set to skip small unused spaces. like offsets of 10 etc.

program=`basename $0`
if [ $# -ne 0 ] ; then 
   echo 'Usage: $program'
   exit 1
fi

beginline=`onstat -d | nawk '{if ($1=="Chunks") { print NR + 2 ; exit }}'`
onstat -d | tail +$beginline | tail -r | tail +3 | nawk '{printf"%s %20d %20d\n",$NF,$4*2,$5*2}'| sort | nawk \
-v MAXCHUNKSIZE=$MAXCHUNKSIZE \
-v MINWASTED=$MINWASTED \
'
BEGIN {
   cur_chunk = ""
   cur_space_used=MAXCHUNKSIZE
}
{
   if ($1 != cur_chunk) {
      if (cur_space_used + MINWASTED < MAXCHUNKSIZE) {
         printf "%s: %d - %d\n",cur_chunk,cur_space_used,MAXCHUNKSIZE
      }
      cur_chunk = $1
      cur_offset = 0
      cur_space_used=0
   }
   
   if ($2 - cur_space_used > MINWASTED) {
      
      printf "%s: %d - %d\n",$1,cur_space_used,$2
   }
   cur_space_used += $3 + ($2 - cur_space_used)
}

END {
   if (cur_space_used + MINWASTED < MAXCHUNKSIZE) {
      printf "%s: %d - %d\n",cur_chunk,cur_space_used,MAXCHUNKSIZE
   }
}'
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