_BASIC OPERATIONS_


# Action  						Arch  				Debian/Ubuntu  			

1. Install a package(s) by name 			`pacman -S` 			`apt install` 		
										
2. Remove a package(s) by name 				`pacman -Rs` 			`apt remove` 
									
3. Search for package(s) 				`pacman -Ss` 			`apt search` 			
											
4. Upgrade Packages 					`pacman -Syu` 			`apt update && apt upgrade` 	
- Install packages which have an older version 						
- already installed 	

5. Upgrade Packages 					`pacman -Syu` 			`apt update && apt dist-upgrade` 	
- Another form of the update command, which can 
- perform more complex updates -- like 
- distribution upgrades. When the usual update 
- command will omit package updates, which 
- include changes in dependencies, this command 
- can perform those updates. 	

6. Clean up all local caches.				`pacman -Sc` 			`apt autoclean` 		
- Options might limit what is actually cleaned. 	`pacman -Scc` 			`apt clean` 		
- Autoclean removes only unneeded, obsolete 
- information. 	

7. Remove dependencies that are no longer needed,	`pacman -Qdtq | pacman -Rs -` 	`apt autoremove` 	
- because e.g. the package which needed the 		
- dependencies was removed. 	

8. Remove packages no longer included in any		`pacman -Qmq | pacman -Rs -` 	`aptitude purge '~o'` 		
- repositories. 					

9. Mark a package previously installed as a		`pacman -D --asexplicit` 	`apt-mark manual` 		 
- dependency as explicitly required. 			

10. Install package(s) as dependency / without		`pacman -S --asdeps` 		`apt-mark auto` 		 
- marking as explicitly required. 			

11. Only downloads the given package(s) 
- without unpacking or installing them 			`pacman -Sw` 			`apt install --download-only` (into package cache)
											`apt download` (bypass the package cache)
12. Start a shell to enter multiple commands in						`apt-config shell` 	 
- one session 			

13. Show a log of actions taken by the software		`cat /var/log/pacman.log` 	`cat /var/log/dpkg.log` 	 
- management. 	

14. Get a dump of the whole system information 		`(see /var/lib/pacman/local)` 	`apt-cache stats` 	
- Prints, Saves or similar the current state 
- of the package management system. 
- Preferred output is text or XML. 

15. e-mail delivery of package changes. 						`apt install apt-listchanges`