#!/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 |