How do I display installed packages list?
If you are using rpm based distro such as Redhat/CentOS/Suse/Fedora Linux, enter:# rpm -qa
# rpm -qa | less
If you are using apt based distro such as Debian/Ubuntu Linux, enter:# dpkg --list
Task: Display package description and other information
If you are using rpm based distro such as Redhat/CentOS/Suse/Fedora Linux use rpm command:
rpm -qi {package-name}
For example display package description, version, vendor, build date for package called mtop, enter:# rpm -qi mtop
Output:
Name : mtop Relocations: (not relocatable) Version : 0.6.6 Vendor: Dag Apt Repository, http://dag.wieers.com/apt/ Release : 1.2.el4.rf Build Date: Fri 20 Jan 2006 05:40:49 PM CST Install Date: Wed 07 Feb 2007 07:04:54 PM CST Build Host: lisse.leuven.wieers.com Group : System Environment/Base Source RPM: mtop-0.6.6-1.2.el4.rf.src.rpm Size : 138090 License: GPL Signature : DSA/SHA1, Fri 20 Jan 2006 05:48:51 PM CST, Key ID a20e52146b8d79e6 Packager : Dag Wieers URL : http://mtop.sourceforge.net/ Summary : Tool to monitor a MySQL database Description : mtop (MySQL top) monitors a MySQL database showing the queries which are taking the most amount of time to complete. Features include 'zooming' in on a process to show the complete query and 'explaining' the query optimizer information.
If you are using rpm based distro such as Debian/Ubuntu Linux use dpkg command:
dpkg -p {package-name]
For example display package description, version, and other information for package called zip, enter:$ dpkg -p zip
Output:
Package: zip Priority: optional Section: utils Installed-Size: 248 Maintainer: Santiago Vila Architecture: i386 Version: 2.32-1 Replaces: zip-crypt (<= 2.30-2) Depends: libc6 (>= 2.4-1) Recommends: unzip Conflicts: zip-crypt (<= 2.30-2) Size: 105640 Description: Archiver for .zip files This is InfoZIP's zip program. It produces files that are fully compatible with the popular PKZIP program; however, the command line options are not identical. In other words, the end result is the same, but the methods differ. :-) . This version supports encryption.
