[ 源代码： mailcap ]
软件包：mailcap（3.70+nmu1）
Debian's mailcap system, and support programs
The mailcap system associates media types with programs that can handle them, using system and user configuration files. A file's media type is determined by its extension or by running the "file" command if available.
Other packages register their programs as viewers/editors/composers/etc by placing mailcap entry files or FreeDesktop menu entries in predetermined directories monitored by this package's dpkg triggers.
This package provides a "run-mailcap" program to open arbitrary files, and in addition the "see", "edit", "compose", and "print" aliases to display, alter, create, and print (respectively).
This package also provides the "debian-view" utility to handle Debian packages interactively.