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