Shell Programming and Scripting

111
abcdefgh
asdfghjk
dfghjkl
222
aaaaaaa
bbbbbb
333
djfhfgjktitjhgfkg
444
djdhfjkhfjkghjkfg
hsbfjksdbhjkgherjklg
fjkhfjklsahjgh
fkrjkgnj

#!/usr/bin/ksh
set -x
linecount=`cat testfile|wc -l`
numval=`cat testfile|grep ^[0-9]|wc -l`
i=0
set -A arr `awk '/[0-9]/{print NR}' testfile`
while [ $linecount -gt 0 ]
do
   while [ $i -le $numval ]
   do
     val=`echo ${arr[i]}`
     cat testfile|head -${val} > file${i}
     i=`expr $i + 1`
   done
     linecount=`expr $linecount - 1`
done

awk '/[0-9]/{of=$0}{print > of}' inputfile

awk  '...' abc.txt

/[0-9]/{of=$0}

{print > of}