What I usually do since I've been shown this kind of attack : - Ctrl-X Ctrl-E: open the default text editor on your system - paste your snipet here and review

What I usually do since I've been shown this kind of attack : - Ctrl-X Ctrl-E: open the default text editor on your system - paste your snipet here and review it - save the snipet in your editor, it is now run.