USAGE!

Add this to your .bashrc to decrypt ro13 in the shell

alias rot13="tr 'A-Za-z' 'N-ZA-Mn-za-m'"

EXAMPLE

rot13 
cvpbPGS{arkg_gvzr_V'yy_gel_2_ebhaqf_bs_ebg13_nSkgmDJE}
picoCTF{next_time_I'll_try_2_rounds_of_rot13_aFxtzQWR}