use 'less' or 'cat' based on number of lines and how big is the terminal

cat_overwrite

function cat() {
    if [ -f $1 ]; then
        terminal_height=$(tput lines)
        file_lines=$(wc -l < $1 | awk '{print $1}')

        if (( $file_lines > $terminal_height )); then
            less $1
        else
            /bin/cat $1
        fi
    else
        echo "File: '$1' not found"
    fi
}