sport
Search and install SlackBuilds.
TLDR
Pull the list of SlackBuilds to run sport for the first time
$ sudo mkdir -p /usr/ports && sudo rsync -av rsync://slackbuilds.org /slackbuilds/$(awk '{print $2}' /etc/slackware-version)/ /usr/ports/
Pull in any updates to the system's tree via rsync
$ sudo sport rsync
Search for a package by name
$ sport search "[keyword]"
Check if a package is installed
$ sport check [package]
Display README and .info files of a package
$ sport cat [package]
Install a package once the dependencies are resolved
$ sudo sport install [package]
Install a list of packages from a file (format: packages separated by spaces)
$ sudo sport install $(< [path/to/list])