#!/bin/ksh

# set -x


#
# Written by Yves Dorfsman, on Sep 8 1998
#

# Need this for hpux for the ps command
export UNIX95=yes
export PS_PERSONALITY=POSIX




# Function definitions
function split_line
  {
  for i in $*
    do
    echo $i
    done
  }


function div_by_1k
  {
  split_line 3 k $1 1024 / p |dc
  }




# Script begin...
# Check if we have an arg, if we do we grep on it
if [[ ! -z "$1" ]] ; then
  PROC_ARG="grep $1"
  SHAR_ARG="$PROC_ARG"
  PATTERN="for pattern $1"
else
  PROC_ARG="tail +2"
  SHAR_ARG="tail +4"
  PATTERN=""
fi


# Do ps and add vsz
echo -n "Total process memory: "
PROCESS_MEM=$(ps -A -o 'vsz user group comm args' | $PROC_ARG |\
           awk 'BEGIN {print 0} {print $1 " +"} END {print "p"}' |dc)

# vsz is in KB, so convert in MB
PROCESS_MEM=$(div_by_1k $PROCESS_MEM)

echo "$PROCESS_MEM MB $PATTERN"




# Shared memory
SHARED_MEM=$(ipcs -mb | $SHAR_ARG |awk 'BEGIN {print 0} {print $7 " +"} \
                                                  END {print "p"}' | dc)

# Comes in bytes, so convert in MB
SHARED_MEM=$(div_by_1k $SHARED_MEM)
SHARED_MEM=$(div_by_1k $SHARED_MEM)

echo "SHARED MEMORY: $SHARED_MEM MB $PATTERN"