zzccmmpp [[--llss]] _f_i_l_e_1[[..ggzz]] _f_i_l_e_2[[..ggzz]] [[_s_k_i_p_1 _s_k_i_p_2]]zcmp compares two compressed files in a byte-by-byte fashion. It behaves exactly the same as cmp, except that it de-compresses compressed files ``on the fly.'' For details on the options to zcmp see the Lexicon entry for cmp.