I need to run the following command:
sed -i 's/^/command="\/bin\/false",no-agent-forwarding,no-pty,no-X11-forwarding, /' ~/.ssh/authorized_keys
within sudo su user -c
I think I've spent about 3 hours reading quoting guides, similar examples, and testing within bash and I still can't find a way that works :(
here is my history if you want a good laugh at my misfortune http://pastebin.com/K6YMm9mp
sudo -u user command will run command as user without the need to invoke su. You will need to set it up in your sudoers file first.
Also, you could put the command you want to run in a small script and sidestep the quoting problems.
su resolves the quoting nightmare. Should work exactly as is in the question.
sudo -u root - it runs the command as root, inheriting root's environment (with a couple of well documented exceptions). Changing the user will inherit that user's environment and should be the same as using su. If you have any doubts, test it. Also, seriously consider making it a small script - if you need to do this more than once it's worth the tiny bit of effort. Plus, if you're worried about it, you can easily stick chmod 400 at the end to force the correct permissions.
"/bin/false". it should have been"\/bin\/false"I think it may have been working somewhere along the line if I had those