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Full Discussion: Is it possible to set timeout on Linux screen session
Operating Systems Linux Is it possible to set timeout on Linux screen session Post 303010952 by prvnrk on Wednesday 10th of January 2018 04:30:46 PM
Old 01-10-2018
Quote:
Originally Posted by Corona688
You cannot defend from root.
Yes ofcourse!

Quote:
Originally Posted by Corona688
You leave behind something that waits 12 hours then kills it:
Code:
( sleep 86400 && kill $$ ) & # Kill parent in 12 hours
exec screen # Replace parent process with screen

This worked great, atleast solves my purpose upto some extent Smilie

Quote:
Originally Posted by Corona688
...but nothing prevents them from finding and killing it first.
Actually I need this. In case I log back into server within 12 hours, I might just abort this kill (may initiate another later), if required.

Quote:
Originally Posted by Corona688
And the more complicated you build your rube-goldberg machine, the more likely they are to notice that someone's doing odd things to the system.
This is not an issue Smilie
 

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LEARN ABOUT OPENSOLARIS

ppmtopgm

ppmtopgm(1)                                                   General Commands Manual                                                  ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and  pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

                                                                   10 April 2000                                                       ppmtopgm(1)
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