With fairly simply
awk '(NR%3)' awk.write
for this file:
this line 1 no un1x this lines 22 0 butbutbut this 33 22 has unix but not 1 THIS is not butbutbut ffff second line
I have output as:
this line 1 no un1x this lines 22 0 but not 1 THIS is not second line
But the last line is not wanted since it doesn't qualify the definition of consecutive.
How can I the get the first two of every three consecutive lines?