How reset the console encoding in OSX?

I don't know what I had done, but now my console output half of the console output as a weird "buffer like" output.

0=71, 1=101, 2=110, 3=101, 4=114, 5=97, 6=116, 7=101, 8=68, 9=83, 10=89, 11=77, 12=70, 13=105, 14=108, 15=101, 16=32, 17=98, 18=117, 19=105, 20=108, 21=100, 22=47, 23=101, 24=109, 25=117, 26=108, 27=97, 28=116, 29=111, 30=114, 31=47, 32=109, 33=121, 34=80, 35=114, 36=111, 37=106, 38=101, 39=99, 40=116, 41=46, 42=97, 43=112, 44=112, 45=46, 46=100, 47=83, 48=89, 49=77, 50=32, 51=98

How can I revert this?