Unicode编码的 “\u5730\u65b9\u7ad9”，用iconv转换为汉字，在不知道-f选项的情况下可以全都试一遍。

#!/bin/bash

for id in `iconv -l`;do echo "$id:" && echo "\u5730\u65b9\u7ad9" |iconv -f $id -t gbk ;done

结果如下：

ANSI_X3.4-1968: 
\u5730\u65b9\u7ad9
ANSI_X3.4-1986: 
\u5730\u65b9\u7ad9
ASCII: 
\u5730\u65b9\u7ad9
CP367: 
\u5730\u65b9\u7ad9
IBM367: 
\u5730\u65b9\u7ad9
ISO-IR-6: 
\u5730\u65b9\u7ad9
ISO646-US: 
\u5730\u65b9\u7ad9
ISO_646.IRV:1991: 
\u5730\u65b9\u7ad9
US: 
\u5730\u65b9\u7ad9
US-ASCII: 
\u5730\u65b9\u7ad9
CSASCII: 
\u5730\u65b9\u7ad9
UTF-8: 
\u5730\u65b9\u7ad9
ISO-10646-UCS-2: 
屵UCS-2: 
屵CSUNICODE: 
屵UCS-2BE: 
屵UNICODE-1-1: 
屵UNICODEBIG: 
屵CSUNICODE11: 
屵UCS-2LE: 
畜UNICODELITTLE: 
畜ISO-10646-UCS-4: 
UCS-4: 
CSUCS4: 
UCS-4BE: 
UCS-4LE: 
UTF-16: 
屵UTF-16BE: 
屵UTF-16LE: 
畜UTF-32: 
UTF-32BE: 
UTF-32LE: 
UNICODE-1-1-UTF-7: 
UTF-7: 
CSUNICODE11UTF7: 
UCS-2-INTERNAL: 
畜UCS-2-SWAPPED: 
屵UCS-4-INTERNAL: 
UCS-4-SWAPPED: 
C99: 
地方站
JAVA: 
地方站
CP819: 
\u5730\u65b9\u7ad9
IBM819: 
\u5730\u65b9\u7ad9
ISO-8859-1: 
\u5730\u65b9\u7ad9
ISO-IR-100: 
\u5730\u65b9\u7ad9
ISO8859-1: 
\u5730\u65b9\u7ad9
ISO_8859-1: 
\u5730\u65b9\u7ad9
ISO_8859-1:1987: 
\u5730\u65b9\u7ad9
L1: 
\u5730\u65b9\u7ad9
LATIN1: 
\u5730\u65b9\u7ad9
CSISOLATIN1: 
\u5730\u65b9\u7ad9
ISO-8859-2: 
\u5730\u65b9\u7ad9
ISO-IR-101: 
\u5730\u65b9\u7ad9
ISO8859-2: 
\u5730\u65b9\u7ad9
ISO_8859-2: 
\u5730\u65b9\u7ad9
ISO_8859-2:1987: 
\u5730\u65b9\u7ad9
L2: 
\u5730\u65b9\u7ad9
LATIN2: 
\u5730\u65b9\u7ad9
CSISOLATIN2: 
\u5730\u65b9\u7ad9
ISO-8859-3: 
\u5730\u65b9\u7ad9
ISO-IR-109: 
\u5730\u65b9\u7ad9
ISO8859-3: 
\u5730\u65b9\u7ad9
ISO_8859-3: 
\u5730\u65b9\u7ad9
ISO_8859-3:1988: 
\u5730\u65b9\u7ad9
L3: 
\u5730\u65b9\u7ad9
LATIN3: 
\u5730\u65b9\u7ad9
CSISOLATIN3: 
\u5730\u65b9\u7ad9
ISO-8859-4: 
\u5730\u65b9\u7ad9
ISO-IR-110: 
\u5730\u65b9\u7ad9
ISO8859-4: 
\u5730\u65b9\u7ad9
ISO_8859-4: 
\u5730\u65b9\u7ad9
ISO_8859-4:1988: 
\u5730\u65b9\u7ad9
L4: 
\u5730\u65b9\u7ad9
LATIN4: 
\u5730\u65b9\u7ad9
CSISOLATIN4: 
\u5730\u65b9\u7ad9
CYRILLIC: 
\u5730\u65b9\u7ad9
ISO-8859-5: 
\u5730\u65b9\u7ad9
ISO-IR-144: 
\u5730\u65b9\u7ad9
ISO8859-5: 
\u5730\u65b9\u7ad9
ISO_8859-5: 
\u5730\u65b9\u7ad9
ISO_8859-5:1988: 
\u5730\u65b9\u7ad9
CSISOLATINCYRILLIC: 
\u5730\u65b9\u7ad9
ARABIC: 
\u5730\u65b9\u7ad9
ASMO-708: 
\u5730\u65b9\u7ad9
ECMA-114: 
\u5730\u65b9\u7ad9
ISO-8859-6: 
\u5730\u65b9\u7ad9
ISO-IR-127: 
\u5730\u65b9\u7ad9
ISO8859-6: 
\u5730\u65b9\u7ad9
ISO_8859-6: 
\u5730\u65b9\u7ad9
ISO_8859-6:1987: 
\u5730\u65b9\u7ad9
CSISOLATINARABIC: 
\u5730\u65b9\u7ad9
ECMA-118: 
\u5730\u65b9\u7ad9
ELOT_928: 
\u5730\u65b9\u7ad9
GREEK: 
\u5730\u65b9\u7ad9
GREEK8: 
\u5730\u65b9\u7ad9
ISO-8859-7: 
\u5730\u65b9\u7ad9
ISO-IR-126: 
\u5730\u65b9\u7ad9
ISO8859-7: 
\u5730\u65b9\u7ad9
ISO_8859-7: 
\u5730\u65b9\u7ad9
ISO_8859-7:1987: 
\u5730\u65b9\u7ad9
ISO_8859-7:2003: 
\u5730\u65b9\u7ad9
CSISOLATINGREEK: 
\u5730\u65b9\u7ad9
HEBREW: 
\u5730\u65b9\u7ad9
ISO-8859-8: 
\u5730\u65b9\u7ad9
ISO-IR-138: 
\u5730\u65b9\u7ad9
ISO8859-8: 
\u5730\u65b9\u7ad9
ISO_8859-8: 
\u5730\u65b9\u7ad9
ISO_8859-8:1988: 
\u5730\u65b9\u7ad9
CSISOLATINHEBREW: 
\u5730\u65b9\u7ad9
ISO-8859-9: 
\u5730\u65b9\u7ad9
ISO-IR-148: 
\u5730\u65b9\u7ad9
ISO8859-9: 
\u5730\u65b9\u7ad9
ISO_8859-9: 
\u5730\u65b9\u7ad9
ISO_8859-9:1989: 
\u5730\u65b9\u7ad9
L5: 
\u5730\u65b9\u7ad9
LATIN5: 
\u5730\u65b9\u7ad9
CSISOLATIN5: 
\u5730\u65b9\u7ad9
ISO-8859-10: 
\u5730\u65b9\u7ad9
ISO-IR-157: 
\u5730\u65b9\u7ad9
ISO8859-10: 
\u5730\u65b9\u7ad9
ISO_8859-10: 
\u5730\u65b9\u7ad9
ISO_8859-10:1992: 
\u5730\u65b9\u7ad9
L6: 
\u5730\u65b9\u7ad9
LATIN6: 
\u5730\u65b9\u7ad9
CSISOLATIN6: 
\u5730\u65b9\u7ad9
ISO-8859-11: 
\u5730\u65b9\u7ad9
ISO8859-11: 
\u5730\u65b9\u7ad9
ISO_8859-11: 
\u5730\u65b9\u7ad9
ISO-8859-13: 
\u5730\u65b9\u7ad9
ISO-IR-179: 
\u5730\u65b9\u7ad9
ISO8859-13: 
\u5730\u65b9\u7ad9
ISO_8859-13: 
\u5730\u65b9\u7ad9
L7: 
\u5730\u65b9\u7ad9
LATIN7: 
\u5730\u65b9\u7ad9
ISO-8859-14: 
\u5730\u65b9\u7ad9
ISO-CELTIC: 
\u5730\u65b9\u7ad9
ISO-IR-199: 
\u5730\u65b9\u7ad9
ISO8859-14: 
\u5730\u65b9\u7ad9
ISO_8859-14: 
\u5730\u65b9\u7ad9
ISO_8859-14:1998: 
\u5730\u65b9\u7ad9
L8: 
\u5730\u65b9\u7ad9
LATIN8: 
\u5730\u65b9\u7ad9
ISO-8859-15: 
\u5730\u65b9\u7ad9
ISO-IR-203: 
\u5730\u65b9\u7ad9
ISO8859-15: 
\u5730\u65b9\u7ad9
ISO_8859-15: 
\u5730\u65b9\u7ad9
ISO_8859-15:1998: 
\u5730\u65b9\u7ad9
LATIN-9: 
\u5730\u65b9\u7ad9
ISO-8859-16: 
\u5730\u65b9\u7ad9
ISO-IR-226: 
\u5730\u65b9\u7ad9
ISO8859-16: 
\u5730\u65b9\u7ad9
ISO_8859-16: 
\u5730\u65b9\u7ad9
ISO_8859-16:2001: 
\u5730\u65b9\u7ad9
L10: 
\u5730\u65b9\u7ad9
LATIN10: 
\u5730\u65b9\u7ad9
KOI8-R: 
\u5730\u65b9\u7ad9
CSKOI8R: 
\u5730\u65b9\u7ad9
KOI8-U: 
\u5730\u65b9\u7ad9
KOI8-RU: 
\u5730\u65b9\u7ad9
CP1250: 
\u5730\u65b9\u7ad9
MS-EE: 
\u5730\u65b9\u7ad9
WINDOWS-1250: 
\u5730\u65b9\u7ad9
CP1251: 
\u5730\u65b9\u7ad9
MS-CYRL: 
\u5730\u65b9\u7ad9
WINDOWS-1251: 
\u5730\u65b9\u7ad9
CP1252: 
\u5730\u65b9\u7ad9
MS-ANSI: 
\u5730\u65b9\u7ad9
WINDOWS-1252: 
\u5730\u65b9\u7ad9
CP1253: 
\u5730\u65b9\u7ad9
MS-GREEK: 
\u5730\u65b9\u7ad9
WINDOWS-1253: 
\u5730\u65b9\u7ad9
CP1254: 
\u5730\u65b9\u7ad9
MS-TURK: 
\u5730\u65b9\u7ad9
WINDOWS-1254: 
\u5730\u65b9\u7ad9
CP1255: 
\u5730\u65b9\u7ad9
MS-HEBR: 
\u5730\u65b9\u7ad9
WINDOWS-1255: 
\u5730\u65b9\u7ad9
CP1256: 
\u5730\u65b9\u7ad9
MS-ARAB: 
\u5730\u65b9\u7ad9
WINDOWS-1256: 
\u5730\u65b9\u7ad9
CP1257: 
\u5730\u65b9\u7ad9
WINBALTRIM: 
\u5730\u65b9\u7ad9
WINDOWS-1257: 
\u5730\u65b9\u7ad9
CP1258: 
\u5730\u65b9\u7ad9
WINDOWS-1258: 
\u5730\u65b9\u7ad9
850: 
\u5730\u65b9\u7ad9
CP850: 
\u5730\u65b9\u7ad9
IBM850: 
\u5730\u65b9\u7ad9
CSPC850MULTILINGUAL: 
\u5730\u65b9\u7ad9
862: 
\u5730\u65b9\u7ad9
CP862: 
\u5730\u65b9\u7ad9
IBM862: 
\u5730\u65b9\u7ad9
CSPC862LATINHEBREW: 
\u5730\u65b9\u7ad9
866: 
\u5730\u65b9\u7ad9
CP866: 
\u5730\u65b9\u7ad9
IBM866: 
\u5730\u65b9\u7ad9
CSIBM866: 
\u5730\u65b9\u7ad9
CP1131: 
\u5730\u65b9\u7ad9
MAC: 
\u5730\u65b9\u7ad9
MACINTOSH: 
\u5730\u65b9\u7ad9
MACROMAN: 
\u5730\u65b9\u7ad9
CSMACINTOSH: 
\u5730\u65b9\u7ad9
MACCENTRALEUROPE: 
\u5730\u65b9\u7ad9
MACICELAND: 
\u5730\u65b9\u7ad9
MACCROATIAN: 
\u5730\u65b9\u7ad9
MACROMANIA: 
\u5730\u65b9\u7ad9
MACCYRILLIC: 
\u5730\u65b9\u7ad9
MACUKRAINE: 
\u5730\u65b9\u7ad9
MACGREEK: 
\u5730\u65b9\u7ad9
MACTURKISH: 
\u5730\u65b9\u7ad9
MACHEBREW: 
\u5730\u65b9\u7ad9
MACARABIC: 
\u5730\u65b9\u7ad9
MACTHAI: 
\u5730\u65b9\u7ad9
HP-ROMAN8: 
\u5730\u65b9\u7ad9
R8: 
\u5730\u65b9\u7ad9
ROMAN8: 
\u5730\u65b9\u7ad9
CSHPROMAN8: 
\u5730\u65b9\u7ad9
NEXTSTEP: 
\u5730\u65b9\u7ad9
ARMSCII-8: 
\u5730\u65b9\u7ad9
GEORGIAN-ACADEMY: 
\u5730\u65b9\u7ad9
GEORGIAN-PS: 
\u5730\u65b9\u7ad9
KOI8-T: 
\u5730\u65b9\u7ad9
CP154: 
\u5730\u65b9\u7ad9
CYRILLIC-ASIAN: 
\u5730\u65b9\u7ad9
PT154: 
\u5730\u65b9\u7ad9
PTCP154: 
\u5730\u65b9\u7ad9
CSPTCP154: 
\u5730\u65b9\u7ad9
KZ-1048: 
\u5730\u65b9\u7ad9
RK1048: 
\u5730\u65b9\u7ad9
STRK1048-2002: 
\u5730\u65b9\u7ad9
CSKZ1048: 
\u5730\u65b9\u7ad9
MULELAO-1: 
\u5730\u65b9\u7ad9
CP1133: 
\u5730\u65b9\u7ad9
IBM-CP1133: 
\u5730\u65b9\u7ad9
ISO-IR-166: 
\u5730\u65b9\u7ad9
TIS-620: 
\u5730\u65b9\u7ad9
TIS620: 
\u5730\u65b9\u7ad9
TIS620-0: 
\u5730\u65b9\u7ad9
TIS620.2529-1: 
\u5730\u65b9\u7ad9
TIS620.2533-0: 
\u5730\u65b9\u7ad9
TIS620.2533-1: 
\u5730\u65b9\u7ad9
CP874: 
\u5730\u65b9\u7ad9
WINDOWS-874: 
\u5730\u65b9\u7ad9
VISCII: 
\u5730\u65b9\u7ad9
VISCII1.1-1: 
\u5730\u65b9\u7ad9
CSVISCII: 
\u5730\u65b9\u7ad9
TCVN: 
\u5730\u65b9\u7ad9
TCVN-5712: 
\u5730\u65b9\u7ad9
TCVN5712-1: 
\u5730\u65b9\u7ad9
TCVN5712-1:1993: 
\u5730\u65b9\u7ad9
ISO-IR-14: 
ISO646-JP: 
JIS_C6220-1969-RO: 
JP: 
CSISO14JISC6220RO: 
JISX0201-1976: 
JIS_X0201: 
X0201: 
CSHALFWIDTHKATAKANA: 
ISO-IR-87: 
橦儀外橦教盥橦戟箙JIS0208: 
橦儀外橦教盥橦戟箙JIS_C6226-1983: 
橦儀外橦教盥橦戟箙JIS_X0208: 
橦儀外橦教盥橦戟箙JIS_X0208-1983: 
橦儀外橦教盥橦戟箙JIS_X0208-1990: 
橦儀外橦教盥橦戟箙X0208: 
橦儀外橦教盥橦戟箙CSISO87JISX0208: 
橦儀外橦教盥橦戟箙ISO-IR-159: 
襜咻刁襜嘰鄈襜垧鋈JIS_X0212: 
襜咻刁襜嘰鄈襜垧鋈JIS_X0212-1990: 
襜咻刁襜嘰鄈襜垧鋈JIS_X0212.1990-0: 
襜咻刁襜嘰鄈襜垧鋈X0212: 
襜咻刁襜嘰鄈襜垧鋈CSISO159JISX02121990: 
襜咻刁襜嘰鄈襜垧鋈CN: 
\u5730\u65b9\u7ad9
GB_1988-80: 
\u5730\u65b9\u7ad9
ISO-IR-57: 
\u5730\u65b9\u7ad9
ISO646-CN: 
\u5730\u65b9\u7ad9
CSISO57GB1988: 
\u5730\u65b9\u7ad9
CHINESE: 
荃捣嘲荃兜夤荃丰涔GB_2312-80: 
荃捣嘲荃兜夤荃丰涔ISO-IR-58: 
荃捣嘲荃兜夤荃丰涔CSISO58GB231280: 
荃捣嘲荃兜夤荃丰涔CN-GB-ISOIR165: 
荃捣嘲荃兜夤荃丰涔ISO-IR-165: 
荃捣嘲荃兜夤荃丰涔ISO-IR-149: 
付KOREAN: 
付KSC_5601: 
付KS_C_5601-1987: 
付KS_C_5601-1989: 
付CSKSC56011987: 
付EUC-JP: 
\u5730\u65b9\u7ad9
EUCJP: 
\u5730\u65b9\u7ad9
EXTENDED_UNIX_CODE_PACKED_FORMAT_FOR_JAPANESE: 
\u5730\u65b9\u7ad9
CSEUCPKDFMTJAPANESE: 
\u5730\u65b9\u7ad9
MS_KANJI: 
SHIFT-JIS: 
SHIFT_JIS: 
SJIS: 
CSSHIFTJIS: 
CP932: 
\u5730\u65b9\u7ad9
ISO-2022-JP: 
\u5730\u65b9\u7ad9
CSISO2022JP: 
\u5730\u65b9\u7ad9
ISO-2022-JP-1: 
\u5730\u65b9\u7ad9
ISO-2022-JP-2: 
\u5730\u65b9\u7ad9
CSISO2022JP2: 
\u5730\u65b9\u7ad9
CN-GB: 
\u5730\u65b9\u7ad9
EUC-CN: 
\u5730\u65b9\u7ad9
EUCCN: 
\u5730\u65b9\u7ad9
GB2312: 
\u5730\u65b9\u7ad9
CSGB2312: 
\u5730\u65b9\u7ad9
GBK: 
\u5730\u65b9\u7ad9
CP936: 
\u5730\u65b9\u7ad9
MS936: 
\u5730\u65b9\u7ad9
WINDOWS-936: 
\u5730\u65b9\u7ad9
GB18030: 
\u5730\u65b9\u7ad9
ISO-2022-CN: 
\u5730\u65b9\u7ad9
CSISO2022CN: 
\u5730\u65b9\u7ad9
ISO-2022-CN-EXT: 
\u5730\u65b9\u7ad9
HZ: 
\u5730\u65b9\u7ad9
HZ-GB-2312: 
\u5730\u65b9\u7ad9
EUC-TW: 
\u5730\u65b9\u7ad9
EUCTW: 
\u5730\u65b9\u7ad9
CSEUCTW: 
\u5730\u65b9\u7ad9
BIG-5: 
\u5730\u65b9\u7ad9
BIG-FIVE: 
\u5730\u65b9\u7ad9
BIG5: 
\u5730\u65b9\u7ad9
BIGFIVE: 
\u5730\u65b9\u7ad9
CN-BIG5: 
\u5730\u65b9\u7ad9
CSBIG5: 
\u5730\u65b9\u7ad9
CP950: 
\u5730\u65b9\u7ad9
BIG5-HKSCS:1999: 
\u5730\u65b9\u7ad9
BIG5-HKSCS:2001: 
\u5730\u65b9\u7ad9
BIG5-HKSCS:2004: 
\u5730\u65b9\u7ad9
BIG5-HKSCS: 
\u5730\u65b9\u7ad9
BIG5-HKSCS:2008: 
\u5730\u65b9\u7ad9
BIG5HKSCS: 
\u5730\u65b9\u7ad9
EUC-KR: 
\u5730\u65b9\u7ad9
EUCKR: 
\u5730\u65b9\u7ad9
CSEUCKR: 
\u5730\u65b9\u7ad9
CP949: 
\u5730\u65b9\u7ad9
UHC: 
\u5730\u65b9\u7ad9
CP1361: 
JOHAB: 
ISO-2022-KR: 
\u5730\u65b9\u7ad9
CSISO2022KR: 
\u5730\u65b9\u7ad9
CP856: 
\u5730\u65b9\u7ad9
CP922: 
\u5730\u65b9\u7ad9
CP943: 
\u5730\u65b9\u7ad9
CP1046: 
\u5730\u65b9\u7ad9
CP1124: 
\u5730\u65b9\u7ad9
CP1129: 
\u5730\u65b9\u7ad9
CP1161: 
\u5730\u65b9\u7ad9
IBM-1161: 
\u5730\u65b9\u7ad9
IBM1161: 
\u5730\u65b9\u7ad9
CSIBM1161: 
\u5730\u65b9\u7ad9
CP1162: 
\u5730\u65b9\u7ad9
IBM-1162: 
\u5730\u65b9\u7ad9
IBM1162: 
\u5730\u65b9\u7ad9
CSIBM1162: 
\u5730\u65b9\u7ad9
CP1163: 
\u5730\u65b9\u7ad9
IBM-1163: 
\u5730\u65b9\u7ad9
IBM1163: 
\u5730\u65b9\u7ad9
CSIBM1163: 
\u5730\u65b9\u7ad9
DEC-KANJI: 
\u5730\u65b9\u7ad9
DEC-HANYU: 
\u5730\u65b9\u7ad9
437: 
\u5730\u65b9\u7ad9
CP437: 
\u5730\u65b9\u7ad9
IBM437: 
\u5730\u65b9\u7ad9
CSPC8CODEPAGE437: 
\u5730\u65b9\u7ad9
CP737: 
\u5730\u65b9\u7ad9
CP775: 
\u5730\u65b9\u7ad9
IBM775: 
\u5730\u65b9\u7ad9
CSPC775BALTIC: 
\u5730\u65b9\u7ad9
852: 
\u5730\u65b9\u7ad9
CP852: 
\u5730\u65b9\u7ad9
IBM852: 
\u5730\u65b9\u7ad9
CSPCP852: 
\u5730\u65b9\u7ad9
CP853: 
\u5730\u65b9\u7ad9
855: 
\u5730\u65b9\u7ad9
CP855: 
\u5730\u65b9\u7ad9
IBM855: 
\u5730\u65b9\u7ad9
CSIBM855: 
\u5730\u65b9\u7ad9
857: 
\u5730\u65b9\u7ad9
CP857: 
\u5730\u65b9\u7ad9
IBM857: 
\u5730\u65b9\u7ad9
CSIBM857: 
\u5730\u65b9\u7ad9
CP858: 
\u5730\u65b9\u7ad9
860: 
\u5730\u65b9\u7ad9
CP860: 
\u5730\u65b9\u7ad9
IBM860: 
\u5730\u65b9\u7ad9
CSIBM860: 
\u5730\u65b9\u7ad9
861: 
\u5730\u65b9\u7ad9
CP-IS: 
\u5730\u65b9\u7ad9
CP861: 
\u5730\u65b9\u7ad9
IBM861: 
\u5730\u65b9\u7ad9
CSIBM861: 
\u5730\u65b9\u7ad9
863: 
\u5730\u65b9\u7ad9
CP863: 
\u5730\u65b9\u7ad9
IBM863: 
\u5730\u65b9\u7ad9
CSIBM863: 
\u5730\u65b9\u7ad9
CP864: 
\u5730\u65b9\u7ad9
IBM864: 
\u5730\u65b9\u7ad9
CSIBM864: 
\u5730\u65b9\u7ad9
865: 
\u5730\u65b9\u7ad9
CP865: 
\u5730\u65b9\u7ad9
IBM865: 
\u5730\u65b9\u7ad9
CSIBM865: 
\u5730\u65b9\u7ad9
869: 
\u5730\u65b9\u7ad9
CP-GR: 
\u5730\u65b9\u7ad9
CP869: 
\u5730\u65b9\u7ad9
IBM869: 
\u5730\u65b9\u7ad9
CSIBM869: 
\u5730\u65b9\u7ad9
CP1125: 
\u5730\u65b9\u7ad9
EUC-JIS-2004: 
\u5730\u65b9\u7ad9
EUC-JISX0213: 
\u5730\u65b9\u7ad9
SHIFT_JIS-2004: 
SHIFT_JISX0213: 
ISO-2022-JP-2004: 
\u5730\u65b9\u7ad9
ISO-2022-JP-3: 
\u5730\u65b9\u7ad9
BIG5-2003: 
\u5730\u65b9\u7ad9
ISO-IR-230: 
Yr5730Yr65b9Yr7ad9
TDS565: 
Yr5730Yr65b9Yr7ad9
ATARI: 
\u5730\u65b9\u7ad9
ATARIST: 
\u5730\u65b9\u7ad9
RISCOS-LATIN1: 
\u5730\u65b9\u7ad9

可以看到C99和JAVA返回了正确结果。

关于C99和JAVA

关于iconv的能力

It provides support for the encodings:
...
Full Unicode
UTF-8
UCS-2, UCS-2BE, UCS-2LE
UCS-4, UCS-4BE, UCS-4LE
UTF-16, UTF-16BE, UTF-16LE
UTF-32, UTF-32BE, UTF-32LE
UTF-7
C99, JAVA