Linux question.

[swestrup]

I'm halfway through making a backup, and my remote terminal window was closed due to a network error (damn windows!)

PS says my backup process is still running, and is waiting for input from me, but I have no idea how to reattach to it, so that I can tell it to continue. Any ideas?

Comments

[dcoombs.livejournal.com]

At the very least, you can "strace -p pidnumber" to see what file descriptor it's waiting on.

You might then be able to echo something > /proc/pidnumber/fd/fdnumber, but I don't actually know if that'll work.

[sps.livejournal.com]

Incredibly, this works:

[stephen@gabriel stephen]$ cat &
[1] 2275
[stephen@gabriel stephen]$ sudo bash -c "echo foo >/proc/2275/fd/0"
foo

So apparently *provided you are root* you can write directly to /proc//fd/0.

Of course, it would have been better to have been using screen(1) or vncserver(1).