The text file format conversion tool that comes with the Mac OS X system Iconv

1. Utf-8 Transfer to GBK method

Run Iconv-f UTF-8-T GBK test_utf8.txt > Test_gbk.txt directly in Mac Bash

　　Example: Creating a test file

echo "Bonnie Big Data | Learn elder sister notes Fruit and fruit learning elder sister" > Test_utf8.txt

Convert command

Iconv-f UTF-8-T GBK test_utf8.txt > Test_gbk.txt

Other formats similarly

2. Use Iconv-l to view the encoding formats supported by this method

iconv-l
ansi_x3.4-1968 ansi_x3.4-1986 ASCII CP367 IBM367 iso-ir-6 iso646-us iso_646.irv:1991 US us-ascii csascii
UTF-8 UTF8
Utf-8-mac Utf8-mac
iso-10646-ucs-2 UCS-2 Csunicode
ucs-2be unicode-1-1 unicodebig CSUNICODE11
Ucs-2le Unicodelittle
iso-10646-ucs-4 UCS-4 CSUCS4
Ucs-4be
Ucs-4le
UTF-16
Utf-16be
Utf-16le
UTF-32
Utf-32be
Utf-32le
unicode-1-1-utf-7 UTF-7 Csunicode11utf7
ucs-2-internal
ucs-2-swapped
ucs-4-internal
ucs-4-swapped
C99
JAVA
CP819 IBM819 iso-8859-1 iso-ir-100 iso8859-1 iso_8859-1 iso_8859-1:1987 L1 LATIN1 CSISOLATIN1
iso-8859-2 iso-ir-101 iso8859-2 iso_8859-2 iso_8859-2:1987 L2 LATIN2 CSISOLATIN2
iso-8859-3 iso-ir-109 iso8859-3 iso_8859-3 iso_8859-3:1988 L3 LATIN3 CSISOLATIN3
iso-8859-4 iso-ir-110 iso8859-4 iso_8859-4 iso_8859-4:1988 L4 LATIN4 CSISOLATIN4
Cyrillic iso-8859-5 iso-ir-144 iso8859-5 iso_8859-5 iso_8859-5:1988 csisolatincyrillic
ARABIC ASMO-708 ECMA-114 iso-8859-6 iso-ir-127 iso8859-6 iso_8859-6 iso_8859-6:1987 csisolatinarabic
ECMA-118 elot_928 GREEK GREEK8 iso-8859-7 iso-ir-126 iso8859-7 iso_8859-7 iso_8859-7:1987 iso_8859-7:2003 Csisolatingreek
HEBREW iso-8859-8 iso-ir-138 iso8859-8 iso_8859-8 iso_8859-8:1988 csisolatinhebrew
iso-8859-9 iso-ir-148 iso8859-9 iso_8859-9 iso_8859-9:1989 L5 LATIN5 CSISOLATIN5
iso-8859-10 iso-ir-157 iso8859-10 iso_8859-10 iso_8859-10:1992 L6 LATIN6 CSISOLATIN6
iso-8859-11 iso8859-11 iso_8859-11
iso-8859-13 iso-ir-179 iso8859-13 iso_8859-13 L7 LATIN7
iso-8859-14 iso-celtic iso-ir-199 iso8859-14 iso_8859-14 iso_8859-14:1998 L8 LATIN8
iso-8859-15 iso-ir-203 iso8859-15 iso_8859-15 iso_8859-15:1998 LATIN-9
iso-8859-16 iso-ir-226 iso8859-16 iso_8859-16 iso_8859-16:2001 L10 LATIN10
koi8-r cskoi8r
Koi8-u
Koi8-ru
CP1250 Ms-ee WINDOWS-1250
CP1251 Ms-cyrl WINDOWS-1251
CP1252 Ms-ansi WINDOWS-1252
CP1253 Ms-greek WINDOWS-1253
CP1254 Ms-turk WINDOWS-1254
CP1255 Ms-hebr WINDOWS-1255
CP1256 ms-arab WINDOWS-1256
CP1257 Winbaltrim WINDOWS-1257
CP1258 WINDOWS-1258
850 CP850 IBM850 cspc850multilingual
862 CP862 IBM862 cspc862latinhebrew
866 CP866 IBM866 CSIBM866
MAC MACINTOSH Macroman csmacintosh
Maccentraleurope
Maciceland
Maccroatian
Macromania
Maccyrillic
Macukraine
Macgreek
Macturkish
Machebrew
Macarabic
Macthai
hp-roman8 R8 ROMAN8 CSHPROMAN8
NEXTSTEP
ARMSCII-8
Georgian-academy
Georgian-ps
koi8-t
CP154 Cyrillic-asian PT154 PTCP154 CSPTCP154
MULELAO-1
CP1133 ibm-cp1133
iso-ir-166 TIS-620 TIS620 tis620-0 tis620.2529-1 tis620.2533-0 tis620.2533-1
CP874 WINDOWS-874
viscii viscii1.1-1 csviscii
tcvn TCVN-5712 tcvn5712-1 tcvn5712-1:1993
iso-ir-14 iso646-jp jis_c6220-1969-ro JP csiso14jisc6220ro
jisx0201-1976 jis_x0201 X0201 Cshalfwidthkatakana
iso-ir-87 JIS0208 jis_c6226-1983 jis_x0208 jis_x0208-1983 jis_x0208-1990 X0208 csiso87jisx0208
iso-ir-159 jis_x0212 jis_x0212-1990 jis_x0212.1990-0 X0212 csiso159jisx02121990
CN gb_1988-80 iso-ir-57 iso646-cn csiso57gb1988
Chinese gb_2312-80 iso-ir-58 csiso58gb231280
cn-gb-isoir165 iso-ir-165
iso-ir-149 KOREAN ksc_5601 ks_c_5601-1987 ks_c_5601-1989 CSKSC56011987
euc-jp eucjp Extended_unix_code_packed_format_for_japanese Cseucpkdfmtjapanese
Ms_kanji shift-jis shift_jis SJIS csshiftjis
CP932
ISO-2022-JP CSISO2022JP
iso-2022-jp-1
iso-2022-jp-2 CSISO2022JP2
CN-GB euc-cn EUCCN GB2312 CSGB2312
GBK
CP936 MS936 WINDOWS-936
GB18030
ISO-2022-CN CSISO2022CN
Iso-2022-cn-ext
HZ hz-gb-2312
euc-tw euctw cseuctw
BIG-5 big-five BIG5 bigfive cn-big5 CSBIG5
CP950
big5-hkscs:1999
big5-hkscs:2001
Big5-hkscs big5-hkscs:2004 Big5hkscs
euc-kr Euckr Cseuckr
CP949 UHC
CP1361 Johab
Iso-2022-kr Csiso2022kr
CP856
CP922
CP943
CP1046
CP1124
CP1129
CP1161 IBM-1161 IBM1161 CSIBM1161
CP1162 IBM-1162 IBM1162 CSIBM1162
CP1163 IBM-1163 IBM1163 CSIBM1163
Dec-kanji
Dec-hanyu
437 CP437 IBM437 cspc8codepage437
CP737
CP775 IBM775 cspc775baltic
852 CP852 IBM852 CSPCP852
CP853
855 CP855 IBM855 CSIBM855
857 CP857 IBM857 CSIBM857
CP858
860 CP860 IBM860 CSIBM860
861 cp-is CP861 IBM861 CSIBM861
863 CP863 IBM863 CSIBM863
CP864 IBM864 CSIBM864
865 CP865 IBM865 CSIBM865
869 cp-gr CP869 IBM869 CSIBM869
CP1125
euc-jisx0213
shift_jisx0213
iso-2022-jp-3
big5-2003
iso-ir-230 TDS565
ATARI atarist
riscos-latin1

　　

The text file format conversion tool that comes with the Mac OS X system Iconv