我可以通过以下方式查询有关rpm软件包的信息

rpm -qi <rpm-package-name>

查询结果示例:

tfaa004:/sm/bin # rpm -qi expect-5.45-16.1.3.i586
Name        : expect
Version     : 5.45
Release     : 16.1.3
Architecture: i586
Install Date: Di 27 Jun 2017 15:31:08 CEST
Group       : Development/Languages/Tcl
Size        : 674166
License     : SUSE-Public-Domain
Signature   : RSA/SHA256, Do 25 Sep 2014 11:42:26 CEST, Key ID b88b2fd43dbdc284
Source RPM  : expect-5.45-16.1.3.src.rpm
Build Date  : Do 25 Sep 2014 11:42:16 CEST
Build Host  : cloud120
Relocations : (not relocatable)
Packager    : http://bugs.opensuse.org
Vendor      : openSUSE
URL         : http://expect.nist.gov
Summary     : A Tool for Automating Interactive Programs
Description :
Expect is a tool primarily for automating interactive applications,
such as telnet, ftp, passwd, fsck, rlogin, tip, and more.  Expect
really makes this stuff trivial.  Expect is also useful for testing
these applications.  It is described in many books, articles, papers,
and FAQs.  There is an entire book on it available from O'Reilly.
Distribution: openSUSE 13.2

但我只想查询描述。这可能吗? 原因是我想在C++程序中处理此信息(描述)(我使用popen()完成此操作)。

可能是这样的:

rpm -qi -Description expect-5.45-16.1.3.i586