Simple shell script to download a file using zenity as GUI (useful for file manager integration).

deps.txt

zenity
xclip
aria2

thunar-action.xml

<action>
	<icon>downline</icon>
	<name>Download File...</name>
	<unique-id>1633819767686351-2</unique-id>
	<command>zenity-dl</command>
	<description>Download a file to the current directory</description>
	<patterns>*</patterns>
	<directories/>
</action>

zenity-dl

#!/usr/bin/sh
URL_CB="$(xclip -o -sel clip)"
if [ -n "$URL_CB" ]; then
	if ! echo "$URL_CB" | rg -q '^https?://'; then
		URL_CB=''
	fi
fi
URL=$(zenity --entry --title="Download File" --text="Enter an URL to download:" --entry-text="$URL_CB" --ok-label="Download" --width 400)
if [ -n "$URL" ]; then
	aria2c "$URL"
fi