INITFILE=/etc/rc.d/rc.npxINITTAB=/etc/inittabSECURETTY=/etc/securettyTTYDEF=tty2TEMPFILE=/tempfilewhile test 1do	clear	echo "NEWTRY Multiserial Card Driver Install Program Version 1.8"	echo "======================================================"	echo "1.Install the driver"	echo "2.Remove the driver"	echo "======================================================"	echo "Please select an option(1 or 2) or enter q to quit:" 	read c	case $c in	q)		exit 0		;;	Q)		exit 0		;;		1)		chmod 755 ./version		./version 		echo "Install success!"		;;	2)				if grep $TTYDEF[1-5][a-p] $SECURETTY > /dev/null 2>&1		then 			echo "The driver is in used!(press any key)"		else			rmmod npx > /dev/null 2>&1			sed '/rc.npx/d' $INITTAB > $TEMPFILE			cp -f $TEMPFILE $INITTAB			rm -f $TEMPFILE			rm -f $INITFILE			echo "Remove success!(press any key)"			rm -f /bin/tenable			rm -f /bin/tdisable		fi		read h		;;	*)		;;	esacdoneexit 0