Shell Programming and Scripting

Median
1.0
2.3
3.0

Median
35.0
26.3
45.7
10.1
63.1

Median
1.2
2.3
3.4
4.5

Median 1.0 2.3 3.0
Median 35.0 26.3 45.7 10.1 63.1
Median 1.2 2.3 3.4 4.5

awk ' /^ *$/ {print} !/^ *$/ {printf $0 " "} END {print ""}' input

awk '/^$/ {print }
       /^[M0-9]/ {printf ("%s ", $0) }
       END {print ""} ' inputfile > newfile

awk '/Median/{if(NR!=1)print " ";}{printf("%s ", $0)}END{print " ";}' file

awk '{printf ($0 ~ /^ *$/) ? "\n" : $0 " " } END {print ""}' input

while read line
do
  printf "$line "
  [ -z "$line" ] && echo ""
done < input
echo ""

awk 'NR>1{gsub("\n"," ",$0);print "Median "$0}' RS="Median" file