Using apt-get to manage software
apt-get used to manage packages in Debian/Ubuntu server.
Install A Package
apt-get install PKG_NAME
Uninstall a software (keep configuration file)
apt-get remove PKG_NAME
Uninstall a software and its configuration files
apt-get --purge remove PKG_NAME
To upgrade a software
apt-get upgrade PKG_NAME
Update Package Info
apt-get update
Remove Unwanted Programs
apt-get autoremove
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