#Der Befehl zum Nachschlagen der Codierung der Textdatei (ISO-2022-JP, Shift_JIS, EUC-JP, UTF-8 oder UTF-16) unter Linux lautet nkf --guess (jedes Mal vergessen)

$ nkf --guess tmp/abc.txt
Shift_JIS

Was ist der Befehl nkf?

Ich habe das Gefühl, es ist ein japanischer Befehl, aber liegt es daran? Es liegt wahrscheinlich an meinem Verstand.

image

[Nkf] Befehlskonvertierungs-Zeichencode und Zeilenvorschubcode: Linux-Basisbefehl Tipps (51) - @ IT https://www.atmarkit.co.jp/ait/articles/1609/29/news016.html

Unangenehm...

Übrigens war es ein Befehl mit dieser Bedeutung ...

nkf - Network Kanji Filter https://linux.die.net/man/1/nkf

Nkf is a yet another kanji code converter among networks, hosts and terminals. It converts input kanji code to designated kanji code such as ISO-2022-JP , Shift_JIS, EUC-JP , UTF-8 or UTF-16 .

image

Beziehung

Wenn ich anfange zu recherchieren, werde ich wieder in den tiefen Wald der Kodierung gehen ...

NKF.guess ist alt. Code-Set (Codierung) Inferenzmethode im Zeitalter der Internationalisierung --ksmakotos Hatenadiary https://ksmakoto.hatenadiary.com/entry/2017/10/23/223230

man

$ man nkf | cat
nkf(1)                                                                  nkf(1)



NAME
       nkf - Network Kanji Filter

SYNOPSIS
       nkf [-butjnesliohrTVvwWJESZxXFfmMBOcdILg] [file ...]

DESCRIPTION
       Nkf is a yet another kanji code converter among networks, hosts and
       terminals.  It converts input kanji code to designated kanji code such
       as ISO-2022-JP, Shift_JIS, EUC-JP, UTF-8, UTF-16 or UTF-32.

       One of the most unique faculty of nkf is the guess of the input kanji
       encodings.  It currently recognizes ISO-2022-JP, Shift_JIS, EUC-JP,
       UTF-8, UTF-16 and UTF-32.  So users needn't set the input kanji code
       explicitly.

       By default, X0201 kana is converted into X0208 kana.  For X0201 kana,
       SO/SI, SSO and ESC-(-I methods are supported.  For automatic code
       detection, nkf assumes no X0201 kana in Shift_JIS.  To accept X0201 in
       Shift_JIS, use -X, -x or -S.

       multiple options are specifed as seprate strings, such as

         print nkf('--ic=UTF8-MAC', '-w', $string), "\n";

       except the last arguments.

OPTIONS
       -J -S -E -W -W16 -W32 -j -s -e -w -w16 -w32
           Specify input and output encodings. Upper case is input.  cf. --ic
           and --oc.

           -J  ISO-2022-JP (JIS code).

           -S  Shift_JIS and JIS X 0201 kana.  EUC-JP is recognized as X0201
               kana. Without -x flag, JIS X 0201 Katakana (a.k.a.halfwidth
               kana) is converted into JIS X 0208.  If you use Windows, see
               Windows-31J (CP932).

           -E  EUC-JP.

           -W  UTF-8N.

           -W16[BL][0]
               UTF-16.  B or L gives whether Big Endian or Little Endian.  0
               gives whther put BOM or not.

           -W32[BL][0]
               UTF-32.  B or L gives whether Big Endian or Little Endian.  0
               gives whther put BOM or not.

       -b -u
           Output is buffered (DEFAULT), Output is unbuffered.

       -t  No conversion.

       -i[@B]
           Specify the escape sequence for JIS X 0208.

           -i@ Use ESC ( @. (JIS X 0208-1978)

           -iB Use ESC ( B. (JIS X 0208-1983/1990 DEFAULT)

       -o[BJ]
           Specify the escape sequence for US-ASCII/JIS X 0201 Roman. (DEFAULT
           B)

       -r  {de/en}crypt ROT13/47

       -h[123] --hiragana --katakana --katakana-hiragana
           -h1 --hiragana
               Katakana to Hiragana conversion.

           -h2 --katakana
               Hiragana to Katakana conversion.

           -h3 --katakana-hiragana
               Katakana to Hiragana and Hiragana to Katakana conversion.

       -T  Text mode output (MS-DOS)

       -f[m [- n]]
           Folding on m length with n margin in a line.  Without this option,
           fold length is 60 and fold margin is 10.

       -F  New line preserving line folding.

       -Z[0-3]
           Convert X0208 alphabet (Fullwidth Alphabets) to ASCII.

           -Z -Z0
               Convert X0208 alphabet to ASCII.

           -Z1 Convert X0208 kankaku to single ASCII space.

           -Z2 Convert X0208 kankaku to double ASCII spaces.

           -Z3 Replacing fullwidth >, <, ", & into '&gt;', '&lt;', '&quot;',
               '&amp;' as in HTML.

       -X -x
           With -X or without this option, X0201 is converted into X0208 Kana.
           With -x, try to preserve X0208 kana and do not convert X0201 kana
           to X0208.  In JIS output, ESC-(-I is used. In EUC output, SS2 is
           used.

       -B[0-2]
           Assume broken JIS-Kanji input, which lost ESC.  Useful when your
           site is using old B-News Nihongo patch.

           -B1 allows any chars after ESC-( or ESC-$.

           -B2 force ASCII after NL.

       -I  Replacing non iso-2022-jp char into a geta character (substitute
           character in Japanese).

       -m[BQN0]
           MIME ISO-2022-JP/ISO8859-1 decode. (DEFAULT) To see ISO8859-1
           (Latin-1) -l is necessary.

           -mB Decode MIME base64 encoded stream. Remove header or other part
               before conversion.

           -mQ Decode MIME quoted stream. '_' in quoted stream is converted to
               space.

           -mN Non-strict decoding.  It allows line break in the middle of the
               base64 encoding.

           -m0 No MIME decode.

       -M  MIME encode. Header style. All ASCII code and control characters
           are intact.

           -MB MIME encode Base64 stream.  Kanji conversion is performed
               before encoding, so this cannot be used as a picture encoder.

           -MQ Perform quoted encoding.

       -l  Input and output code is ISO8859-1 (Latin-1) and ISO-2022-JP.  -s,
           -e and -x are not compatible with this option.

       -L[uwm] -d -c
           Convert line breaks.

           -Lu -d
               unix (LF)

           -Lw -c
               windows (CRLF)

           -Lm mac (CR)

               Without this option, nkf doesn't convert line breaks.

       --fj --unix --mac --msdos --windows
           Convert for these systems.

       --jis --euc --sjis --mime --base64
           Convert to named code.

       --jis-input --euc-input --sjis-input --mime-input --base64-input
           Assume input system

       --ic=input codeset --oc=output codeset
           Set the input or output codeset.  NKF supports following codesets
           and those codeset names are case insensitive.

           ISO-2022-JP
               a.k.a. RFC1468, 7bit JIS, JUNET

           EUC-JP (eucJP-nkf)
               a.k.a. AT&T JIS, Japanese EUC, UJIS

           eucJP-ascii
           eucJP-ms
           CP51932
               Microsoft Version of EUC-JP.

           Shift_JIS
               a.k.a. SJIS, MS_Kanji

           Windows-31J
               a.k.a. CP932

           UTF-8
               same as UTF-8N

           UTF-8N
               UTF-8 without BOM

           UTF-8-BOM
               UTF-8 with BOM

           UTF8-MAC (input only)
               decomposed UTF-8

           UTF-16
               same as UTF-16BE

           UTF-16BE
               UTF-16 Big Endian without BOM

           UTF-16BE-BOM
               UTF-16 Big Endian with BOM

           UTF-16LE
               UTF-16 Little Endian without BOM

           UTF-16LE-BOM
               UTF-16 Little Endian with BOM

           UTF-32
               same as UTF-32BE

           UTF-32BE
               UTF-32 Big Endian without BOM

           UTF-32BE-BOM
               UTF-32 Big Endian with BOM

           UTF-32LE
               UTF-32 Little Endian without BOM

           UTF-32LE-BOM
               UTF-32 Little Endian with BOM

       --fb-{skip, html, xml, perl, java, subchar}
           Specify the way that nkf handles unassigned characters.  Without
           this option, --fb-skip is assumed.

       --prefix=escape charactertarget character..
           When nkf converts to Shift_JIS, nkf adds a specified escape
           character to specified 2nd byte of Shift_JIS characters.  1st byte
           of argument is the escape character and following bytes are target
           characters.

       --no-cp932ext
           Handle the characters extended in CP932 as unassigned characters.

       --no-best-fit-chars
           When Unicode to Encoded byte conversion, don't convert characters
           which is not round trip safe.  When Unicode to Unicode conversion,
           with this and -x option, nkf can be used as UTF converter.  (In
           other words, without this and -x option, nkf doesn't save some
           characters)

           When nkf converts strings that related to path, you should use this
           opion.

       --cap-input
           Decode hex encoded characters.

       --url-input
           Unescape percent escaped characters.

       --numchar-input
           Decode character reference, such as "&#....;".

       --in-place[=SUFFIX]  --overwrite[=SUFFIX]
           Overwrite original listed files by filtered result.

           Note --overwrite preserves timestamps of original files.

       --guess=[12]
           Print guessed encoding and newline. (2 is default, 1 is only
           encoding)

       --help
           Print nkf's help.

       --version
           Print nkf's version.

       --  Ignore rest of -option.

AUTHOR
       Copyright (c) 1987, Fujitsu LTD. (Itaru ICHIKAWA).

       Copyright (c) 1996-2018, The nkf Project.



nkf 2.1.5                         2018-12-15                            nkf(1)

Original by Github issue

https://github.com/YumaInaura/YumaInaura/issues/2916

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