printer_check

来自「Advanced Bash&#8722 Scripting Guide An 」· 代码 · 共 25 行

#!/bin/sh
# Script name: printer_check
# Script to clear a hung up printer for SVR4
if [ $LOGNAME != root ]
then
	echo "Must have root privileges to run this program"
	exit 1
fi
cat << EOF
Warning: All jobs in the printer queue will be removed.
Please turn off the printer now. Press return when you
are ready to continue. Otherwise press Control C.
EOF
read ANYTHING      # Wait until the user turns off the printer
echo
/etc/init.d/lp stop       # Stop the printer
rm -f /var/spool/lp/SCHEDLOCK /var/spool/lp/temp*
echo
echo "Please turn the printer on now."
echo "Press return to continue"
read ANYTHING		# Stall until the user turns the printer 
			# back on
echo			# A blank line is printed
/etc/init.d/lp start	# Start the printer