install_upgrade

<B>Digital的Unix操作系统VAX 4.2源码</B>

#!/bin/sh
#
# SCCSID=@(#)install_upgrade	4.1 (ULTRIX) 7/2/90
# usage: install_upgrade [machinename] [/dev/*]
# 	
# 000 - January 13, 1987 - Tung-Ning Cherng
#

USAGE="usage: $0 [machinename] /dev/special"
ris=ris
machine=`hostname`
RCP="/bin/cp "
RSH="/bin/sh -c"
case `whoami` in
root) ;;
* )
	echo "You must be superuser."
	exit 1
	;;
esac
case $# in
1 )
	DEVICE=$1	# local machine
	;;
2 )
	DEVICE=$2
	case $1 in
	$machine )	# local machine
		;;
	* )		# must be remote machine
		machine=$1
		RCP="rcp ${machine}.${ris}:"
		RSH="rsh ${machine} -l ${ris} -n"
		;;
	esac
	;;
* )
	echo "$USAGE"
	exit 1
	;;
esac

while :
do
	echo -n "
Is the correct capacity upgrade kit loaded on $DEVICE at $machine <y/n>? "
	read ans
	case $ans in
	y* | Y* )
		break
		;;
	n* | n* )
		exit 1	
		;;
	esac
done
$RSH '(cd /tmp; tar -xf "'${DEVICE}'" )' 
${RCP}/tmp/upgrade /tmp/upg$$
$RSH 'rm -f /tmp/upgrade'
cp /tmp/upg$$ /upgrade	>/dev/null 2>&1 || 
{
	echo "Capacity Upgrade installation failed!"
	rm -f /tmp/upg$$
	exit 1
}
rm -f /tmp/upg$$
(cd /; /bin/chmod 400 /upgrade)
echo "Capacity Upgrade installation done."