Answers:
您可以使用dpkg-deb命令来操作Debian软件包归档文件（.deb）。
从联机帮助页：-
-I, --info archive [control-file-name...]
Provides information about a binary package archive.
If no control-file-names are specified then it will print a summary of the contents of the package as
well as its control file.
If any control-file-names are specified then dpkg-deb will print them in the order they were specified;
if any of the components weren't present it will print an error message to stderr about each one and
exit with status 2.
用法示例：-
$ dpkg-deb -I intltool_0.50.2-2_all.deb
new debian package, version 2.0.
size 52040 bytes: control archive=1242 bytes.
831 bytes, 19 lines control
1189 bytes, 18 lines md5sums
Package: intltool
Version: 0.50.2-2
Architecture: all
Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com>
Original-Maintainer: Debian GNOME Maintainers <pkg-gnome-maintainers@lists.alioth.debian.org>
Installed-Size: 239
Depends: gettext (>= 0.10.36-1), patch, automake | automaken, perl (>= 5.8.1), libxml-parser-perl, file
Provides: xml-i18n-tools
Section: devel
Priority: optional
Multi-Arch: foreign
Homepage: https://launchpad.net/intltool
Description: Utility scripts for internationalizing XML
Automatically extracts translatable strings from oaf, glade, bonobo
ui, nautilus theme and other XML files into the po files.
.
Automatically merges translations from po files back into .oaf files
(encoding to be 7-bit clean). The merging mechanism can also be
extended to support other types of XML files.
您可以通过dpkg-deb -c以下方式列出内容：
用法示例：
$ dpkg-deb -c libnotify-bin_0.7.6-1ubuntu3_i386.deb
drwxr-xr-x root/root 0 2014-02-22 05:24 ./
drwxr-xr-x root/root 0 2014-02-22 05:24 ./usr/
drwxr-xr-x root/root 0 2014-02-22 05:24 ./usr/bin/
-rwxr-xr-x root/root 9764 2014-02-22 05:24 ./usr/bin/notify-send
drwxr-xr-x root/root 0 2014-02-22 05:24 ./usr/share/
drwxr-xr-x root/root 0 2014-02-22 05:24 ./usr/share/man/
drwxr-xr-x root/root 0 2014-02-22 05:24 ./usr/share/man/man1/
-rw-r--r-- root/root 773 2014-02-22 05:24 ./usr/share/man/man1/notify-send.1.gz
drwxr-xr-x root/root 0 2014-02-22 05:24 ./usr/share/doc/
drwxr-xr-x root/root 0 2014-02-22 05:25 ./usr/share/doc/libnotify-bin/
-rw-r--r-- root/root 1327 2011-07-31 03:11 ./usr/share/doc/libnotify-bin/copyright
lrwxrwxrwx root/root 0 2014-02-22 05:25 ./usr/share/doc/libnotify-bin/AUTHORS -> ../libnotify4/AUTHORS
lrwxrwxrwx root/root 0 2014-02-22 05:25 ./usr/share/doc/libnotify-bin/NEWS.gz -> ../libnotify4/NEWS.gz
lrwxrwxrwx root/root 0 2014-02-22 05:25 ./usr/share/doc/libnotify-bin/changelog.Debian.gz -> ../libnotify4/changelog.Debian.gz
大多数档案的版权信息可从以下网站获得/usr/share/doc/<pkgname>/copyright
例子：-
$ dpkg-deb -c gparted_0.18.0-1_i386.deb | grep -i copyright
-rw-r--r-- root/root 1067 2011-12-08 00:34 ./usr/share/doc/gparted/copyright
您可以从中提取许可证-x并查找发布许可证所依据的许可证。
这里：-
$ cat /usr/share/doc/gparted/copyright | grep -i ^license -A 5
License:
This package is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 dated June, 1991.
有关更多信息，请运行man dpkg-deb。