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Top Forums Shell Programming and Scripting Little explanation needed on array Post 302768905 by Akshay Hegde on Sunday 10th of February 2013 01:21:19 PM
Old 02-10-2013
Code:
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.

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IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
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