./freq_analysis.pl GPL.txt e = 716 ( 11.43 % ) t = 560 ( 8.94 % ) o = 550 ( 8.78 % ) a = 509 ( 8.13 % ) r = 472 ( 7.54 % ) i = 466 ( 7.44 % ) n = 390 ( 6.23 % ) s = 373 ( 5.96 % ) l = 249 ( 3.98 % ) h = 236 ( 3.77 % ) c = 232 ( 3.70 % ) d = 229 ( 3.66 % ) u = 193 ( 3.08 % ) m = 170 ( 2.71 % ) p = 164 ( 2.62 % ) y = 159 ( 2.54 % ) f = 152 ( 2.43 % ) g = 123 ( 1.96 % ) b = 103 ( 1.64 % ) w = 94 ( 1.50 % ) v = 67 ( 1.07 % ) k = 32 ( 0.51 % ) x = 18 ( 0.29 % ) q = 3 ( 0.05 % ) j = 2 ( 0.03 % ) z = 1 ( 0.02 % )