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Diff for /src/usr.bin/file/magic.5 between version 1.2 and 1.3

version 1.2, 1996/06/26 05:32:59 version 1.3, 1997/02/09 23:58:28
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 .\" @(#)$OpenBSD$  .\" $OpenBSD$
   .\" install as magic.4 on USG, magic.5 on V7 or Berkeley systems.
 .TH MAGIC 5 "Public Domain"  .TH MAGIC 5 "Public Domain"
 .\" install as magic.5 on USG, magic.5 on V7 or Berkeley systems.  
 .SH NAME  .SH NAME
 magic \- file command's magic number file  magic \- file command's magic number file
 .SH DESCRIPTION  .SH DESCRIPTION
 The  This manual page documents the format of the magic file as
 .IR file (1)  used by the
   .BR file (1)
   command, version 3.22. The
   .B file
 command identifies the type of a file using,  command identifies the type of a file using,
 among other tests,  among other tests,
 a test for whether the file begins with a certain  a test for whether the file begins with a certain
 .IR "magic number" .  .IR "magic number" .
 The file  The file
 .B /etc/magic  .I /etc/magic
 specifies what magic numbers are to be tested for,  specifies what magic numbers are to be tested for,
 what message to print if a particular magic number is found,  what message to print if a particular magic number is found,
 and additional information to extract from the file.  and additional information to extract from the file.
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 .IP message  .IP message
 The message to be printed if the comparison succeeds.  If the string  The message to be printed if the comparison succeeds.  If the string
 contains a  contains a
 .IR printf (3S)  .BR printf (3S)
 format specification, the value from the file (with any specified masking  format specification, the value from the file (with any specified masking
 performed) is printed using the message as the format string.  performed) is printed using the message as the format string.
 .PP  .PP
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 .I y  .I y
 is added and the result is used as an offset in the file. The default type  is added and the result is used as an offset in the file. The default type
 if one is not specified is long.  if one is not specified is long.
   .PP
   Sometimes you do not know the exact offset as this depends on the length of
   preceding fields. You can specify an offset relative to the end of the
   last uplevel field (of course this may only be done for sublevel tests, i.e.
   test beginning with
   .B >
   ). Such a relative offset is specified using
   .B &
   as a prefix to the offset.
 .SH BUGS  .SH BUGS
 The formats  The formats
 .IR long ,  .IR long ,
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 There is (currently) no support for specified-endian data to be used in  There is (currently) no support for specified-endian data to be used in
 indirect offsets.  indirect offsets.
 .SH SEE ALSO  .SH SEE ALSO
 .IR file (1)  .BR file (1)
 \- the command that reads this file.  \- the command that reads this file.
 .\"  .\"
 .\" From: guy@sun.uucp (Guy Harris)  .\" From: guy@sun.uucp (Guy Harris)
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