How can I convert an IDN to Punycode in bash?

Question

What is the easiest way to convert an IDN (such as президент.рф) to Punycode in bash?

score 12 · Accepted Answer · answered Nov 27 '11 at 01:59

Take a look at the idn:

[U] net-dns/libidn
     Available versions:  1.22 (~)1.22-r1 {doc elibc_FreeBSD emacs java mono nls static-libs}
     Installed versions:  1.22(03:12:19 PM 07/04/2011)(nls static-libs -doc -elibc_FreeBSD -emacs -java -mono)
     Homepage:            http://www.gnu.org/software/libidn/
     Description:         Internationalized Domain Names (IDN) implementation

For e.g:

$ echo "президент.рф" | idn
xn--d1abbgf6aiiy.xn--p1ai

In Ubuntu can be installed by `apt install idn` – PeterM Oct 27 '16 at 11:31 — PeterM, Oct 27 '16 at 11:31

score 3 · Answer 2 · answered Nov 26 '11 at 23:09

3

Assuming you have python on your system, python -c 'import sys;print sys.argv[1].decode("utf-8").encode("idna")' "президент.рф" would do the trick.

answered Nov 26 '11 at 23:09

Per von Zweigbergk

2,625
2
19
28

score 1 · Answer 3 · answered Dec 13 '16 at 13:05

1

In MacOS brew install homebrew/versions/libidn2.

Then echo "президент.рф" | idn2.

answered Dec 13 '16 at 13:05

zored

121
1

How can I convert an IDN to Punycode in bash?

3 Answers3