APT

1. How Do I List All Available Packages?
apt-cache pkgnames
2. How Do I Find Out Package Name and Description of Software?
apt-cache search vsftpd
To find and list down all the packages starting with ‘vsftpd‘, you could use the following command.
apt-cache pkgnames vsftpd
3. How Do I Check Package Information?
apt-cache show netcat
4. How Do I Check Dependencies for Specific Packages?
apt-cache showpkg vsftpd
5. How Do I Check statistics of Cache
apt-cache stats
6. How to Update System Packages
sudo apt-get update
7. How to Upgrade Software Packages
sudo apt-get upgrade
However, if you want to upgrade, unconcerned of whether software packages will be added or removed to fulfill dependencies, use the ‘dist-upgrade‘ sub command.
sudo apt-get dist-upgrade
8. How Do I Install or Upgrade Specific Packages?
sudo apt-get install netcat
9. How I can Install Multiple Packages?
sudo apt-get install nethogs goaccess
10. How to Install Several Packages using Wildcard
sudo apt-get install '*name*'
11. How to install Packages without Upgrading
sudo apt-get install packageName --no-upgrade
12. How to Upgrade Only Specific Packages
sudo apt-get install packageName --only-upgrade
13. How Do I Install Specific Package Version?
sudo apt-get install vsftpd=2.3.5-3ubuntu1
14. How Do I Remove Packages Without Configuration
sudo apt-get remove vsftpd
15. How Do I Completely Remove Packages
sudo apt-get purge vsftpd
sudo apt-get remove --purge vsftpd
16. How I Can Clean Up Disk Space
sudo apt-get clean
17. How Do I Download Only Source Code of Package
sudo apt-get --download-only source vsftpd
18. How Can I Download and Unpack a Package
sudo apt-get source vsftpd
19. How Can I Download, Unpack and Compile a Package
sudo apt-get --compile source goaccess
20. How Do I Download a Package Without Installing
sudo apt-get download nethogs
21. How Do I Check Change Log of Package?
sudo apt-get changelog vsftpd
22. How Do I Check Broken Dependencies?
sudo apt-get check
23. How Do I Search and Build Dependencies?
sudo apt-get build-dep netcat
24. How I Can Auto clean Apt-Get Cache?
sudo apt-get autoclean
25. How I Can Auto remove Installed Packages?
sudo apt-get autoremove vsftpd