Information query software installed

6. Query installed software information
    problem

1. List all RPM software currently installed host
2. View a list of installed firefox package
3. Queries ifconfig command after which the program is to produce packages installed
4. View firefox package uses
    program
   queries all rpm packages installed, you can use the command rpm -qa.
   Query a list of software installed, you can use the command rpm -ql software name.
   Query a file which is generated by the package is installed, you can use the command rpm -qf absolute file path. In this problem we must first find, ifconfig commands executable program where you can use which command.
   Use viewing software, you can use the command rpm -qi software name.
    steps
   to achieve this case need to follow the steps below.
   Step One: List all RPM software currently installed host
   command actions are as follows:
   [root @ localhost ~] # RPM -qa
   Step two: Check the list of installed firefox package
   command actions are as follows:
   [root @ localhost ~ ] # rpm -ql firefox
   step three: ifconfig command query program which is produced after the package installation
   command actions are as follows:
   [the root @ localhost ~] # which ifconfig
   / sbin / ifconfig
   RPM [the root @ localhost ~] # -qf / sbin / the ifconfig
   NET-Tools-1.60-110.el6_2.x86_64
   [the root @ localhost ~] #
   step four: See firefox package uses
   command operations as follows:
   [root @ localhost ~] # RPM -qi Firefox
   the Name: Firefox Relocations: (not relocatable)
   Version: 17.0.10 Vendor: Red Hat, Inc.
   Release: 1.el6_4 Build a Date: 2013 Nian 10 Wednesday, 23 October 21:14 minutes and 43 seconds
   Install Date: 2015 Nian 01 Yue 06 Tuesday, 20:59:04 Host Build: x86-027.build.eng.bos.redhat.com
   Group: Applications / Internet Source RPM: Firefox-17.0.10-1 .el6_4.src.rpm
   Size: 30,424,459 License: GPLv2 + or LGPLv2 MPLv1.1 or +
   Signature: RSA / 8, 2013 Nian 10 Tuesday, 29 October 16:20:45, Key ID 199e2f91fd431d51
   Packager: Red Hat, Inc. HTTP: //bugzilla.redhat.com/bugzilla
   the URL of: at http://www.mozilla.org/projects/firefox/
   the Summary: Mozilla Firefox Web Browser
   the Description:
   Mozilla Firefox is an open-source web browser, designed for standards
   compliance, performance and portability.
   [root@localhost ~]#