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#!/bin/sh
usage() {
(
echo "Usage: $0 [board IP] [board port]"
echo ""
echo "If IP is not specified, 'localhost' will be used"
echo "If port is not specified, '2001' will be used"
[ -z "$*" ] && exit 0
echo ""
echo "ERROR: $*"
exit 1
) 1>&2
exit $?
}
while [ -n "$1" ] ; do
case $1 in
-h|--help) usage;;
--) break;;
-*) usage "Invalid option $1";;
*) break;;
esac
shift
done
ip=${1:-localhost}
port=${2:-2001}
if [ -z "${ip}" ] || [ -n "$3" ] ; then
usage "Invalid number of arguments"
fi
trap "stty icanon echo opost intr ^C" 0 2 3 5 10 13 15
echo "NOTE: the interrupt signal (normally ^C) has been remapped to ^T"
stty -icanon -echo -opost intr ^T
nc ${ip} ${port}
exit 0
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