Ubuntu software installation and deletion commands

Install software
Command: APT-Get install softname1 softname2 softname3 ......
Uninstall Software
Command: APT-Get remove softname1 softname2 softname3 ......
Uninstall and clear configurations
Command: APT-Get remove -- purge softname1
Update Software Information Database
Command: APT-Get update
System Upgrade
Command: APT-Get upgrade
Search for software packages
Command: APT-cache search softname1 softname2 softname3 ......
Deb software package installation and uninstallation

Install Deb Software Package
Command: dpkg-I XXX. Deb
Delete a software package
Command: dpkg-r XXX. Deb
Delete with configuration file
Command: dpkg-r -- purge XXX. Deb
View software package information
Command: dpkg-Info XXX. Deb
View copy details
Command: dpkg-l XXX. Deb
View installed software packages in the system
Command: dpkg-l
Reconfigure the Software Package
Command: dpkg-reconfigure xxx