#!/bin/bash

isint() { 
    declare -i ARG;
    ARG=$1;
    if [ $ARG -ge 0 ]; then
        echo 0;
    else
        echo 1;
    fi; 
}

if [ $# -gt 2 ]; then
    cat << EOF
usage: $0 [arg1] [arg2] 
EOF
fi
echo $*