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According to wikipedia in the bash shell control+u

Clears the line content before the cursor and copies it into the clipboard

If I'm ssh'ed into a box and try that, the text certainly disappears but I have no idea where it goes. Can I access it somehow? I don't want to have to use xsel or set up x-forwarding, I am just curious if it is stored in some register somewhere remotely. For example, I tried starting vim and typing "*p or "+p to paste from the system clibpoard but am not having any luck.

If I use control+u remotely when ssh'ed to a box, where does it go, and can I access it?

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    I think that x-forwarding (which is really just as simple as adding -X to your SSH options) should enable "*y in vim, if vim on the server has X-clipboard support built in. Otherwise, no, there's no shared clipboard. Commented Apr 16, 2012 at 16:36

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Reset to default
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You can yank (paste) it back somewhere with Ctrl-y as in emacs.

See the "Killing and Yanking" subsection of bash manual "Readline" section.

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    Yes, this is bash's internal clipboard, completely confined to that remote invocation of bash. (There's no notion of an interprocess clipboard in the shell environment; normally X provides this.) Commented Apr 16, 2012 at 16:25

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