vzpid

#!/bin/bash
#  Copyright (C) 2000-2006 SWsoft. All rights reserved.
#
#  This program is free software; you can redistribute it and/or modify
#  it under the terms of the GNU General Public License as published by
#  the Free Software Foundation; either version 2 of the License, or
#  (at your option) any later version.
#
#  This program is distributed in the hope that it will be useful,
#  but WITHOUT ANY WARRANTY; without even the implied warranty of
#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#  GNU General Public License for more details.
#
#  You should have received a copy of the GNU General Public License
#  along with this program; if not, write to the Free Software
#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
#
veidmark='envID:'
namemark='Name:'

function usage()
{
	echo "Usage: vzpid [pid ...] [-h]"
}

function header()
{
	echo "Pid	VEID	Name"
}

function getveid()
{
	local pid=$1

	[ -f /proc/${pid}/status ] || return
	cat /proc/${pid}/status | \
awk -v pid=${pid} 'BEGIN{veid=0} /^'${namemark}'|^'${veidmark}'/{
	if ($1 == "'${namemark}'") {
		name = $2;
	} else if ($1 == "'${veidmark}'") {
		veid = $2;
	}
}
END{
	printf("%d\t%s\t%s\n", pid, veid, name);
}'
}

pidlist=
if [ $# -eq 0 ]; then
	usage
	exit 1
elif [ $# -eq 1 -a "x$1" = "x-" ]; then
	while read pid; do
		pidlist="${pidlist} ${pid}"
	done
elif [ $# -eq 1 -a "x$1" = "x-h" ]; then
	usage
	exit 0
else
	pidlist=$*
fi
header
for i in ${pidlist}; do 
	getveid ${i}
done