# compose(1) - man - phpMan

[RUN-MAILCAP(1)](https://www.chedong.com/phpMan.php/man/RUN-MAILCAP/1/markdown)                          Run Mailcap Programs                          [RUN-MAILCAP(1)](https://www.chedong.com/phpMan.php/man/RUN-MAILCAP/1/markdown)



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

## SYNOPSIS
       **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).


## DESCRIPTION
       **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 file‐
       name 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), 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.

## SECURITY
       A temporary symbolic link to the file is opened if the file name matches the Perl regular ex‐
       pression "[^[: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 argu‐
       ments, for instance using file names starting with dashes.

## SEE ALSO
       [**file**(1)](https://www.chedong.com/phpMan.php/man/file/1/markdown) [**mailcap**(5)](https://www.chedong.com/phpMan.php/man/mailcap/5/markdown) [**mailcap.order**(5)](https://www.chedong.com/phpMan.php/man/mailcap.order/5/markdown) [**update-mime**(8)](https://www.chedong.com/phpMan.php/man/update-mime/8/markdown)

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

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



Debian Project                              1st Jan 2008                              [RUN-MAILCAP(1)](https://www.chedong.com/phpMan.php/man/RUN-MAILCAP/1/markdown)