How to Find Installed Package Details on Ubuntu and LinuxMint

Ubuntu and LinuxMint is the most favored Linux program used for Desktops . If you are also a customer of Ubuntu or LinuxMint or Debian os and want to know the installed package information or version, this article will help you.

We can use dpkg command to get information of all packages. 

For example if you want to get the version details of openssh-server package or other details run following command.

dpkg -s openssh-server
Package: openssh-server
Status: install ok installed
Multi-Arch: foreign
Priority: optional
Section: net
Installed-Size: 821
Maintainer: Colin Watson <[email protected]>
Architecture: i386
Source: openssh
Version: 1:5.9p1-5ubuntu1.4
Replaces: openssh-client (<< 1:3.8.1p1-11), ssh, ssh-krb5
Provides: ssh-server
Depends: libc6 (>= 2.15), libcomerr2 (>= 1.01), libgssapi-krb5-2 
(>= 1.10+dfsg~), libkrb5-3 (>= 1.6.dfsg.2), libpam0g (>=, 
libselinux1 (>= 1.32), libssl1.0.0 (>= 1.0.0), libwrap0 (>= 7.6-4~), 
zlib1g (>= 1:1.1.4), debconf (>= 1.2.0) | debconf-2.0, openssh-client 
(= 1:5.9p1-5ubuntu1.4), upstart-job, libpam-runtime (>= 0.76-14), 
libpam-modules (>= 0.72-9), adduser (>= 3.9), dpkg (>= 1.9.0), 
lsb-base (>= 3.2-13), procps
Recommends: xauth, ssh-import-id
Suggests: ssh-askpass, rssh, molly-guard, openssh-blacklist, 
openssh-blacklist-extra, ufw, monkeysphere
Conflicts: rsh-client (<< 0.16.1-1), sftp, ssh (<< 1:3.8.1p1-9), 
ssh-krb5 (<< 1:4.3p2-7), ssh-nonfree (<< 2), ssh-socks, ssh2
/etc/default/ssh 500e3cf069fe9a7b9936108eb9d9c035
/etc/init/ssh.conf 2c7eae0c0ef56b191dad89310fa36b8e
/etc/pam.d/sshd 7d1f5d0deb6bcbfe8076640cc573b09c
/etc/network/if-up.d/openssh-server d6e8fb0f6192bc4cb91c4a1bc50d096b
/etc/ufw/applications.d/openssh-server 486b78d54b93cc9fdc950c1d52ff479e
/etc/init.d/ssh 72f87136ef9b97c7dba5fe2b75e13a59
Description: secure shell (SSH) server, for secure access from 
remote machines
This is the portable version of OpenSSH, a free implementation of
the Secure Shell protocol as specified by the IETF secsh working
Ssh (Secure Shell) is a program for logging into a remote machine
and for executing commands on a remote machine.
It provides secure encrypted communications between two untrusted
hosts over an insecure network. X11 connections and arbitrary TCP/IP
ports can also be forwarded over the secure channel.
It can be used to provide applications with a secure communication
 This package provides the sshd server.
 In some countries it may be illegal to use any encryption at all
 without a special permit.
 sshd replaces the insecure rshd program, which is obsolete for most
Original-Maintainer: Debian OpenSSH Maintainers

That’s all we have to do.  Please give your opinion below if you experience any issues or to discuss your ideas and experiences.