−b

bufferd output. This is a default.

−u

unbufferd output.

−t

no operations.

−j

output 7-bit JIS code. This is a default.

−s

output MS-kanji (shifted-JIS) code.

−e

output EUC (AT&T) code.

−ic

output ESC−$−c as sequence to designate JIS-kanji (Default is B.)

−oc

output ESC−(−c as sequence to designate single-byte roman characters (Default is B.)

−r

{de/en}crypt ROT13/47

−v

display Version

−T

Text mode output (MS-DOS)

−m

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 is converted to space.

−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.

−l

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

−fn

Folding on n length in a line. Default 60.

−X

Allow X0201 kana in MS-Kanji. X0201 is converted into X0208 by default. This is default in MSDOS.

−x

Try to preseve X0208 kana. Assume X0201 kana in MS-Kanji. And do not convert X0201 kana to X0208. In JIS output, ESC-(-I is used. In EUC output, SSO is used.

−Z

Convert X0208 alphabet to ASCII. −Z1 converts X0208 kankaku to one ASCII space. −Z2 converts X0208 kankaku to two ASCII spaces.

−S

Assume MS-Kanji and X0201 kana input. It also accpet JIS. AT&T EUC is recognized as X0201 kana. Without −x flag, X0201 kana is converted into X0208.

−J

Assume JIS input. It also accepts Japanese EUC. This is the default. This flag does not excludde MS-Kanji.

−E

Assume AT&T EUC input. It also accpet JIS. Same as −J.

−B

Assume broken JIS-Kanji, which lost ESC. Usefull when your site is using old B-News Nihongo patch. −B1 allows any char after ESC-( or ESC-$. −B2 forces ASCII after NL.

−O

Output result to file. The first name in arguments becomes output. Please be careful. If there are no file arguments, nkf.out is chosen.

−c

add CR after NL.

−d

delete CR after NL.

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long options