yaourt:tldr:ce82d

The yaourt -Syua command is specific to the Arch Linux operating system, and it is used to update all installed packages on the system.

Breaking down the command:

• yaourt: yaourt is a popular AUR (Arch User Repository) helper program for Arch Linux. It allows users to easily find, download, and install software packages from the AUR, which is a community-driven repository of user-created packages.

• -S: The -S option is used to synchronize packages' databases. In this case, it updates the package database with the latest available versions of packages.

• -y: The -y option automatically answers "yes" to any prompts during the update process. This is useful for unattended or scripted updates where user interaction is not desired.

• -u: The -u option, when used with -a, performs a system-wide upgrade by upgrading all installed packages to their latest versions.

• -a: The -a option, when used with -u, tells yaourt to upgrade all packages installed on the system, including both the ones from the official repositories and the ones from the AUR.

Overall, running yaourt -Syua ensures that your entire system is up to date by synchronizing the package database, downloading and upgrading any available packages, both from the official repositories and the AUR.