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Top Forums Shell Programming and Scripting Detail on For loop for multiple file input and bash variable usage Post 302781349 by Akshay Hegde on Saturday 16th of March 2013 08:53:50 AM
Old 03-16-2013
Detail on For loop for multiple file input and bash variable usage

Dear mentors, I just need little explanation regarding for loop to give input to awk script

Code:
for file in `ls *.txt |sort -t"_" -k2n,2`; do

awk script  $file

done

which sorts file in order, and will input one after another file in order to awk script

suppose if I have to input 2 or more than two file in order to awk what I need to do

case is something like this

Code:
for loop

awk script file_1 file_2 file_3

done

in next increment it should
Code:
input file_4 file_5 and file_6

and I do program normally by FORTRAN or C, don't know much about shell

every time I have to edit in and out file in Fortran code and then I have to compile and run .for code

is there any solution like EOF for fortran to use bash variable in fortran code for in and out file replacement and execute the same.



Kindly anyone explain on this topic.
 

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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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