# pacman --sync > Arch Linux package manager utility. > See also: `pacman`. > More information: . - Install a new package: `sudo pacman --sync {{package}}` - Synchronize and update all packages (add `--downloadonly` to download the packages and not update them): `sudo pacman --sync --refresh --sysupgrade` - Update all packages and install a new one without prompting: `sudo pacman --sync --refresh --sysupgrade --noconfirm {{package}}` - Search the package database for a regular expression or keyword: `pacman --sync --search "{{search_pattern}}"` - Display information about a package: `pacman --sync --info {{package}}` - Overwrite conflicting files during a package update: `sudo pacman --sync --refresh --sysupgrade --overwrite {{path/to/file}}` - Synchronize and update all packages, but ignore a specific package (can be used more than once): `sudo pacman --sync --refresh --sysupgrade --ignore {{package}}` - Remove not installed packages and unused repositories from the cache (use two `--clean` flags to clean all packages): `sudo pacman --sync --clean`