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User Commands auto_ef(1)
NAME
auto_ef - auto encoding finder
SYNOPSIS
/usr/bin/auto_ef [-e encoding_list] [-a] [-l level] [file
...]
/usr/bin/auto_ef -h
DESCRIPTION
The auto_ef utility identifies the encoding of a given file.
The utility judges the encoding by using the iconv code
conversion, determining whether a certain code conversion
was successful with the file, and also by performing fre-
quency analyses on the character sequences that appear in
the file.
The auto_ef utility might produce unexpected output if the
string is binary, a character table, a localized digit list,
or a chronogram, or if the string or file is very small in
size (for example, less than one 100 bytes).
ASCII JIS
ISO-2022-JP
eucJP Japanese EUC
PCK Japanese PC Kanji, CP932, Shift JIS
UTF-8 Korean EUC
ko_KR.euc
ko_KR.cp949 Unified Hangul
ISO-2022-KR ISO-2022 Korean
zh_CN.iso2022-CN ISO-2022 CN/CN-EXT
SunOS 5.10 Last change: 26 Sep 2004 1
User Commands auto_ef(1)
zh_CN.euc Simplified Chinese EUC, GB2312
GB18030 Simplified Chinese GB18030/GBK
zh_TW-big5 BIG5
zh_TW-euc Traditional Chinese EUC
zh_TW.hkscs Hong Kong BIG5
iso-8859-1 West European, and similar
iso-8859-2 East European, and similar
iso-8859-5 Cyrillic, and similar
iso-8859-6 Arabic
iso-8859-7 Greek
iso-8859-8 Hebrew
CP1250 windows-1250, corresponding to ISO-
8859-2
CP1251 windows-1251, corresponding to ISO-
8859-5
SunOS 5.10 Last change: 26 Sep 2004 2
User Commands auto_ef(1)
CP1252 windows-1252, corresponding to ISO-
8859-1
CP1253 windows-1253, corresponding to ISO-
8859-7
CP1255 windows-1255, corresponding to ISO-
8859-8
koi8-r corresponding to iso-8859-5
By default, auto_ef returns a single, most likely encoding
for text in a specified file. To get all possible encodings
for the file, use the -a option.
Also by default, auto_ef uses the fastest process to examine
the file. For more accurate results, use the -l option.
To examine data with a limited set of encodings, use the -e
option.
OPTIONS
The following options are supported:
-a Shows all possible encodings in
order of possibility, with scores in
the range between 0.0 and 1.0. A
higher score means a higher possi-
bility. For example,
example% auto_ef -a test_file
eucJP 0.89
zh_CN.euc 0.04
ko_KR.euc 0.01
Without this option, only one encod-
ing with the highest score is shown.
-e encoding_list Examines data only with specified
encodings. For example, when
encoding_list is specified as
SunOS 5.10 Last change: 26 Sep 2004 3
User Commands auto_ef(1)
"ko_KR.euc:ko_KR.cp949", auto_ef
examines text only with CP949 and
ko_KR.euc. Without this option,
auto_ef examines text with all
encodings. Multiple encodings can be
specified by separating the encod-
ings using a colon (:).
-h Shows the usage message.
-l level Specifies the level of judgment. The
value of level can be 0, 1, 2, or 3.
Level 3 produces the best result but
can be slow. Level 0 is fastest but
results can be less accurate than in
higher levels. The default is level
0.
OPERANDS
The following operands are supported:
file File name to examine.
EXAMPLES
Example 1: Examining encoding of a file
example% auto_ef file_name
Example 2: Examining encoding of a file at level 2.
example% auto_ef -l 2 file_name
Example 3: Examining encoding of a file with only eucJP or
ko_KR.euc
example% auto_ef -e "eucJP:ko_KR.euc" file_name
EXIT STATUS
The following exit values are returned:
0 Successful completion
SunOS 5.10 Last change: 26 Sep 2004 4
User Commands auto_ef(1)
1 An error occurred.
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:
____________________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|_____________________________|_____________________________|
| Availability | SUNWautoef |
|_____________________________|_____________________________|
| Interface Stability | See below. |
|_____________________________|_____________________________|
Interface Stability of output format, when option -a is
specified, is Evolving. Other interfaces are Stable.
SEE ALSO
auto_ef(3EXT), libauto_ef(3LIB), attributes(5)
International Language Environments Guide
SunOS 5.10 Last change: 26 Sep 2004 5
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This page was generated on Wed Sep 12 11:24:25 GMT 2007
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