Punycode to Ascii command line tool.
$ pun -h
Usage of ./pun:
-d Decode domain as unicode to ascii
-f string
Defines filename from where to read domain
$ echo "xn--c1yn36f" | ./pun -d
2017/05/30 14:18:30 Reading from STDIN.
點看
$ echo "xn--c1yn36f" | ./pun -d > out.txt
2017/05/30 14:18:30 Reading from STDIN.
$ cat out.txt
點看