#! /usr/bin/env bash

base=$(dirname "$0")

function usage() {
    echo "usage: $(basename "$0") [-n <max-lines>] <file>"
    exit 1
}

lines=""

while getopts "n:" opt; do
    case $opt in
        n) lines=$OPTARG ;;
        *) usage ;;
    esac
done

shift $((OPTIND - 1))

if [ "$1" = "" ]; then
    usage
fi

if [ "$lines" != "" ]; then
    lines="-n $lines"
fi

"$base/btest-rst-cmd" "$lines" -o cat "$1"