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I have a major problem. I screened a program, but i cannot detach from it.

Ctrl+a Ctrl+d just don't do anything. They will be displayed as ^A or ^D , which is really annoying.

I cannot Ctrl+a and d , they just don't to anything.

Can someone help me, i want to turn of my computer :D, so i can leave from the computer... I NEED SLEEP.

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closed as off topic by ewwhite, mdpc, womble, sysadmin1138 Aug 8 '12 at 22:25

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I thought turning off your machine would detach it by default ? – Sirex Aug 8 '12 at 21:47

Login to the screen host and run screen -D to detach your screen session.

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