mime.types(5) — Linux manual page


mime.types(5)                    Apple Inc.                    mime.types(5)

NAME         top

       mime.types - mime type description file for cups

DESCRIPTION         top

       The mime.types file defines the recognized file types.

       Additional file types are specified in files with the extension
       .types in the CUPS configuration directory.

       Each line in the mime.types file is a comment, blank, or rule line.
       Comment lines start with the # character.  Rule lines start with the
       MIME media type and are optionally followed by a series of file
       recognition rules:

           mime/type [ rule ... rule ]

       Rules can be extended over multiple lines using the backslash
       character (\):

           mime/type [ really-really-really-long-rule ... \
             rule ]

       MIME media types specified by the mime/type field are case-
       insensitive and are sorted in ascending alphanumeric order for the
       purposes of matching.  See the "TYPE MATCHING AND PRIORITY" section
       for more information.

       The rules may be grouped using parenthesis, joined using "+" for a
       logical AND, joined using "," or whitespace for a logical OR, and
       negated using "!".

       Rules take two forms - a filename extension by itself and functions
       with test values inside parenthesis.  The following functions are

            True if the filename matches the given shell wildcard pattern.

            True if the length bytes starting at offset are valid printable
            ASCII (CR, NL, TAB, BS, 32-126).

            True if the length bytes starting at offset are printable 8-bit
            chars (CR, NL, TAB, BS, 32-126, 128-254).

            Specifies the relative priority of this MIME media type.  The
            default priority is 100.  Larger values have higher priority
            while smaller values have lower priority.

            True if the bytes starting at offset are identical to string.

            True if the bytes starting at offset match string without
            respect to case.

            True if the byte at offset is identical to value.

            True if the 16-bit big-endian integer at offset is identical to

            True if the 32-bit big-endian integer at offset is identical to

            True if current locale matches string.

            True if the bytes starting at offset for range bytes contains

       String constants can be specified inside quotes ("") for strings
       containing whitespace and angle brackets (<>) for hexadecimal

       When CUPS needs to determine the MIME media type of a given file, it
       checks every MIME media type defined in the .types files.  When two
       or more types match a given file, the type chosen will depend on the
       type name and priority, with higher-priority types being used over
       lower-priority ones.  If the types have the same priority, the type
       names are sorted alphanumerically in ascending order and the first
       type is chosen.

       For example, if two types "text/bar" and "text/foo" are defined as
       matching the extension "doc", normally the type "text/bar" will be
       chosen since its name is alphanumerically smaller than "text/foo".
       However, if "text/foo" also defines a higher priority than
       "text/bar", "text/foo" will be chosen instead.

FILES         top

       /etc/cups - Typical CUPS configuration directory.

EXAMPLES         top

       Define two MIME media types for raster data, with one being a subset
       with higher priority:

           application/vnd.cups-raster  string(0,"RaSt") string(0,"tSaR") \
                                         string(0,"RaS2") string(0,"2SaR") \
                                         string(0,"RaS3") string(0,"3SaR")

           image/pwg-raster              string(0,"RaS2") + \
                                         string(4,PwgRaster<00>) priority(150)

SEE ALSO         top

       cups-files.conf(5), cupsd.conf(5), cupsd(8), cupsfilter(8),
       mime.convs(5), CUPS Online Help (http://localhost:631/help)

COPYRIGHT         top

       Copyright © 2007-2019 by Apple Inc.

COLOPHON         top

       This page is part of the CUPS (a standards-based, open source
       printing system) project.  Information about the project can be found
       at ⟨http://www.cups.org/⟩.  If you have a bug report for this manual
       page, see ⟨http://www.cups.org/⟩.  This page was obtained from the
       project's upstream Git repository ⟨https://github.com/apple/cups⟩ on
       2020-08-13.  (At that time, the date of the most recent commit that
       was found in the repository was 2020-04-27.)  If you discover any
       rendering problems in this HTML version of the page, or you believe
       there is a better or more up-to-date source for the page, or you have
       corrections or improvements to the information in this COLOPHON
       (which is not part of the original manual page), send a mail to

26 April 2019                       CUPS                       mime.types(5)

Pages that refer to this page: classes.conf(5)cupsd.conf(5)cups-files.conf(5)gitweb.conf(5)mime.convs(5)printers.conf(5)subscriptions.conf(5)cupsd(8)