Shell Programming and Scripting

HI Dona...you can do something like this if you want to use multiple files
awk '{
          {getline <"file1"; a[NR]=$1;b[NR]=$2;c[NR]=$3} # a,b,c array of File1 column1,column2,column3 
          {getline <"file2"; d[NR]=$1;e[NR]=$2;f[NR]=$3}
          {getline <"file3"; g[NR]=$1;h[NR]=$2;i[NR]=$3}
          {getline <"file4;   j[NR]=$1;k[NR]=$2;l[NR]=$3 }
          }
END{for(i=1;i<=some  value;i++) print a[i],b[i],c[i]........}' OFS=" \t" # if you want to  print you can use loop and OFS is tab separated here.

in above example I shown printing of array, you can do you some other operation also.

awk 'FNR==1{i++} {for(k=1; k<=NF; k++) A[i,FNR,k]=$k} END{print ".."}' file[1-4]

for(i=1;i<=25;i++)
{
for(m=1;m<=NF;m++)
A[i,m]=A[1,i,m]
}