add-apt-key - This command line tool can be used to add a GPG key to your APT key ring.
MobaXterm - Enhanced terminal for Windows with X11 server, tabbed SSH client, network tools and much more
launchpad-getkeys - Launchpad-Getkeys is a script (comes packaged in a .
PuTTY - Popular free terminal application. Mostly used as an SSH client.
Introduce PPA - The program saves you from having to open the console to add a new PPA.
GNOME Terminal - GNOME Terminal is a terminal emulator for GNOME desktop.