#!/bin/ksh
#	CMD UserMem.sh 
#	PGM.VERSION = $Revision: 1.1 $
#	Author:	Raymond M. A. Erdey
#		http://members.telocity.com/rerdey
#
#	Date:	11/18/1997 
#
#	Description:
#		Displays the amount of memory used by all processes
#		running under a particular user ID.
#
#		To get memory usage for all users try:
#		ps -afe | awk '{print $1}' | sort -u | xargs -n1 UserMem.sh
#
#	Parameters:
#		UserID
#
#	Modifications:
#

UserID=$1
cmd=$(basename $0)

TempFile=/tmp/tmp.tmp.$$

if [ "${UserID}" = "" ]
then
	print -u2 "\nUsage: ${cmd} UserID\n"
	print -u2 "Where:\n\tUserID\t- User ID for which to calculate memory usage.\n"
	exit
fi


SIZE=$(ps -fu ${UserID} -F "uname,pid,ppid,vsz,pmem,args" |awk  -v User=${UserID} '
	BEGIN {
		size=0
	}
	{
		i=$4
		if ($1 == User) {
			size=size + i
		}
	}
	END {
		print size
	} ' )

ipcs -mb |awk -v User=${UserID} -v size=${SIZE} '
	{
		if ($5 == User) {
			if ($7 != "") {
				i = $7 / 1024
				size = size + i
			}
		}
	}
	END {
		printf("\n\tUser ID:\t\t%s\n",User)
		printf("\tSize in K Bytes:\t%f\n", size)
		Megs = size / 1024
		if (Megs > 0) {
			printf("\tSize in Meg:\t\t%f\n", Megs)
		}
		printf("\n")
	} '