https://blog.dasomoli.org/linux-gzip%ec%9c%bc%eb%a1%9c-%ec%95%95%ec%b6%95%eb%90%9c-%eb%a1%9c%ea%b7%b8-%ed%8c%8c%ec%9d%bc-%eb%8b%a4%eb%a3%a8%ea%b8%b0/