run-mailcap, view, see, edit, compose, print - execute programs via entries in the mailcap file

run-mailcap (and its aliases) was written by Brian White <bcwhite@pobox.com>.

run-mailcap (and its aliases) is in the public domain (the only true "free").

Debian Project                                    1st Jan 2008                                    RUN-MAILCAP(1)

run-mailcap (or any of its aliases) will use the given action to process  each  mime-type/file  in  turn.
       Each  file  is  specified  as  its  mime-type,  its  encoding  (e.g. compression), and filename together,
       separated by colons.  If the mime-type is omitted, an attempt to determine the type is made by trying  to
       match  the file's extension with those in the mime.types files.  If no mime-type is found, a last attempt
       will be done by running the file command, if available.  If the encoding is  omitted,  it  will  also  be
       determined  from  the  file's extensions.  Currently supported encodings are gzip (.gz), bzip2 (.bz2), xz
       (.xz), zstd (.zst[d]), and compress (.Z).  A filename of "-" can be used to mean  "standard  input",  but
       then a mime-type must be specified.

       Both  the  user's  files (~/.mailcap; ~/.mime.types) and the system files (/etc/mailcap; /etc/mime.types)
       are searched in turn for information.

   EXAMPLES
         see picture.jpg
         print output.ps.gz
         compose text/html:index.htm
         extract-mail-attachment msg.txt | see image/tiff:gzip:-

   OPTIONS
       All options are in the form --<opt>=<value>.

       --action=<action>
              Performs  the  specified  action  on  the  files.   Valid  actions  are  view,  cat   (uses   only
              "copiousoutput"  rules  and sends output to STDOUT), compose, composetyped, edit and print.  If no
              action is specified, the action will be determined by how the program was called.

       --debug
              Turns on extra information to find out what is happening.

       --nopager
              Ignores any "copiousoutput" directive and sends output to STDOUT.

       --norun
              Displays the found command without actually executing it.

       run-mailcap, view, see, edit, compose, print - execute programs via entries in the mailcap file

       A temporary symbolic link to the file is opened if the file name  matches  the  Perl  regular  expression
       "[^[:alnum:],.:/@%^+=_-]",  in  order  to  protect from the injection of shell commands, and to make sure
       that the name can always be displayed in the current locale.  In addition, the file is opened  using  its
       absolute  path to prevent the injection of command-line arguments, for instance using file names starting
       with dashes.

file(1) mailcap(5) mailcap.order(5) update-mime(8)

run-mailcap --action=ACTION [--option[=value]] [MIME-TYPE:[ENCODING:]]FILE [...]

       The  see,  edit, compose and print versions are just aliases that default to the view, edit, compose, and
       print actions (respectively).