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# Pacman Cheat Sheet For Ubuntu Users
> Mon 24th August 2020 By David T. Sadler.
As a regular Ubuntu user I am used to using apt for system maintenance. But now that I've installed Arch Linux I will be using pacman and so below is a cheat sheet for myself that shows the pacman equivalent of some common apt actions.
```
Action | Apt | Pacman |
---------------------------|--------------------------------|----------------------------|
Install a package | apt install <package name> | pacman -S <package name> |
Remove a package | apt remove <package name> | pacman -Rs <package name> |
Search for a package | apt serch <search term> | pacman -Ss <regexp> |
Upgrade packages | apt update && apt upgrade | pacman -Syu |
Upgrade distribution | apt update && apt dist-upgrade | pacman -Syu |
Clean up local caches | apt autoclean | pacman -Scc |
Remove unused dependencies | apt autoremove | pacman -Qmq | pacman -Rs - |
```
## Install a Package
```shell
$ pacman --sync <package name>
$ pacman -S <package name>
```
Installs a package and its dependencies.
## Remove a Package
```shell
$ pacman --remove --recursive <package name>
$ pacman -Rs <package name>
```
Removes a package and all its dependencies, provided that (A) they are not required by other packages; and (B) they were not explicitly installed by the user.
## Search For a Package
```shell
$ pacman --sync --search <regexp>
$ pacman -Ss <regexp>
```
Searches in the sync database for packages with a name or description that match the regexp.
## Upgrade Packages
```shell
$ pacman --sync --refresh --sysupgrade
$ pacman -Syu
```
Downloads a fresh copy of the master package database and then upgrades all out-of-date packages.
## Upgrade Distribution
```shell
$ pacman --sync --refresh --sysupgrade
$ pacman -Syu
```
Since Arch uses a rolling release system there is no distribution version as you just upgrade your packages to their latest versions.
## Clean Up Local Caches
```shell
$ pacman --sync --clean --clean
$ pacman -Scc
```
Free up disk space by removing from the cache any packages that are no longer installed. Also removes any cached sync databases.
## Remove Used Dependencies
```shell
$ pacman --query --deps --unrequired --quiet | pacman --remove --recursive -
$ pacman -Qdtq | pacman -Rs -
```
Remove dependencies that are no longer needed, because e.g. the package which needed the dependencies was removed.
### Links
=> /posts/arch/2020-05-25/installing-arch-linux-on-a-x220-thinkpad/ Installing Arch Linux on a Thinkpad X220.
=> /posts/arch/ Arch - Read More Posts.
I don't have comments as I don't want to manage them. You can however contact me at the below address if you want to.
=> mailto:david@davidtsadler.com Email david@davidtsadler.com
=> https://creativecommons.org/licenses/by-sa/4.0/ The contents of this site is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Copyright © 2021 David T. Sadler.
=> / Return to Homepage.
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