A function to download Slack reaction.

emoji.fish

function emoji --description 'Download an Emoji from Slack'
	set url $argv

	# Download the file
	wget -q "$url"

	# Parse the URL.
	# Last component is the filename on the server
	# Second to last is the emoji name in Slack
	set urlComponents (string split "/" $url)
	set oldName $urlComponents[-1]
	set newName "$urlComponents[-2].png"

	# Reame the file
	mv "$oldName" "$newName"

	echo "Downloaded '$newName' 🎉"
end