Usage:

$ dolarhoy 
AUD 2.210 2.330
BRL 1.610 1.770
CAD 2.770 2.990
CHF 2.980 3.230
CLP 0.005 0.006
EUR 4.490 4.620
GBP 4.980 5.330
JPY 0.035 0.039
MXN 0.210 0.259
PYG 0.672 0.777
USD 3.440 3.470
UYU 0.146 0.165