Shell Programming and Scripting

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#!/bin/ksh
sed '1,3d' /out.txt | while read line; do
  read line2
  echo $line $line2
done

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paste -sd' \n' file

$ sed '1,3d;N;s/\n/ /' file
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#!/bin/ksh
sed '1,3d' /out.txt | while read line; do
  read line2
  echo "ABC ; DEF ; $line ; GHI ; $line2 ; ZZZ" >> finaloutput.txt
  echo "XXX ; YYY ; $line ; UUU ; $line2 ; PPP" >> finaloutput2.txt
done

sed -n '${s/$/\
/;b proc
}
/^[ \t]*$/d;N
:proc
h;
s/\n/ ; GHI ; /
s/^/ABC ; DEF ; /
s/$/ ; ZZZ/
w finaloutput.txt
g
s/\n/ ; UUU ; /
s/^/XXX ; YYY ; /
s/$/ ; PPP/
w finaloutput2.txt' /out.txt

awk 'NF>0{x=$0;getline y;print x FS y}' filename