If you wish to view information for a
package installed
on an Ubuntu Linux system,
you can use the command apt show packageName or
dpkg -s packageName where packageName is the
name of the relevant package. If you are only interested in the version number
for a package, you can
pipe the output
of either command into the grep
command.
$ apt show net-tools Package: net-tools Version: 1.60+git20181103.0eebece-1ubuntu5 Priority: optional Section: net Origin: Ubuntu Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com> Original-Maintainer: net-tools Team <team+net-tools@tracker.debian.org> Bugs: https://bugs.launchpad.net/ubuntu/+filebug Installed-Size: 819 kB Depends: libc6 (>= 2.34), libselinux1 (>= 3.1~) Homepage: http://sourceforge.net/projects/net-tools/ Task: ubuntukylin-desktop Download-Size: 204 kB APT-Manual-Installed: yes APT-Sources: http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages Description: NET-3 networking toolkit This package includes the important tools for controlling the network subsystem of the Linux kernel. This includes arp, ifconfig, netstat, rarp, nameif and route. Additionally, this package contains utilities relating to particular network hardware types (plipconfig, slattach, mii-tool) and advanced aspects of IP configuration (iptunnel, ipmaddr). . In the upstream package 'hostname' and friends are included. Those are not installed by this package, since there is a special "hostname*.deb". $ apt show net-tools | grep "Version:" WARNING: apt does not have a stable CLI interface. Use with caution in scripts. Version: 1.60+git20181103.0eebece-1ubuntu5 $ dpkg -s net-tools Package: net-tools Status: install ok installed Priority: important Section: net Installed-Size: 800 Maintainer: Ubuntu Developers <ubuntu-devel-discuss@lists.ubuntu.com> Architecture: amd64 Multi-Arch: foreign Version: 1.60+git20181103.0eebece-1ubuntu5 Depends: libc6 (>= 2.34), libselinux1 (>= 3.1~) Description: NET-3 networking toolkit This package includes the important tools for controlling the network subsystem of the Linux kernel. This includes arp, ifconfig, netstat, rarp, nameif and route. Additionally, this package contains utilities relating to particular network hardware types (plipconfig, slattach, mii-tool) and advanced aspects of IP configuration (iptunnel, ipmaddr). . In the upstream package 'hostname' and friends are included. Those are not installed by this package, since there is a special "hostname*.deb". Homepage: http://sourceforge.net/projects/net-tools/ Original-Maintainer: net-tools Team <team+net-tools@tracker.debian.org> $ dpkg -s net-tools | grep "Version:" Version: 1.60+git20181103.0eebece-1ubuntu5 $
Another command that will show you the installed version of a package
on a Ubuntu systems is apt-cache policy packageName.
$ apt-cache policy net-tools
net-tools:
Installed: 1.60+git20181103.0eebece-1ubuntu5
Candidate: 1.60+git20181103.0eebece-1ubuntu5
Version table:
*** 1.60+git20181103.0eebece-1ubuntu5 500
500 http://archive.ubuntu.com/ubuntu jammy/main amd64 Packages
100 /var/lib/dpkg/status
$
