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Activate Screen Session Automatically

/ Published in: Bash
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  1. if [[ "$STY" == "" ]]; then
  2.   screen -r > .screenResult
  3.   if [[ $? == 1 ]]; then
  4.     export whoami=`whoami`
  5.     export total=`cat .screenResult | grep -i "attached" | wc -l`
  6.     export s=$[`cat .screenResult | grep "${whoami}-AS" | grep -iv "attached" | wc -l`]
  7.     if [[ $s == 0 ]] ; then
  8.       echo 'Starting new screen session as no unattached screen exist'
  9.       screen -S ${whoami}-AS
  10.     else
  11.       export screenSessionCount=$[$s-1]
  12.       echo 'Resuming the first of ' $screenSessionCount  'screen sessions'
  13.       export r=`screen -r | tail -n $s | head -n 1 | awk -F. '{printf "%d\n", $1}'`
  14.       screen -r $r
  15.     fi
  16.   else
  17.     echo 'Resumed single screen'
  18.   fi
  19. else
  20.   echo "You are on screen $WINDOW! "
  21. fi

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