Simple awk with split, variable NF and NR

example.awk

# Example AWK script
# echo -e '1 2 3\n4 5 6\n10.11.12'| awk -v DATE=$(date "+%m%d%y") -f t1.awk                                                                     
#                                                                                                                                               
  /[0-9]*\.[0-9]*\./ { n=split($1,a,"."); print n " values in s" }
{
  if (NR==1) {print $1 " Rec number: " NR  " Fields " NF}


}

END {print DATE

    for(i=1; i <= n; ++i) print "a[" i "]= " a[i]  " n= " n
 }

#                                                                                                                                               
# Example output                                                                                                                                
#                                                                                                                                               
# 1 Rec number: 1 Fields 3                                                                                                                      
# 3 values in s                                                                                                                                 
# 030313                                                                                                                                        
# a[1]= 10 n= 3                                                                                                                                 
# a[2]= 11 n= 3                                                                                                                                 
# a[3]= 12 n= 3