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Top Forums Shell Programming and Scripting For loop inside awk to read and print contents of files Post 302817799 by jaldo0805 on Thursday 6th of June 2013 01:08:07 PM
Old 06-06-2013
For loop inside awk to read and print contents of files

Hello,
I have a set of files Xfile0001 - Xfile0021, and the content of this files (one at a time) needs to be printed between some line (lines start with word "Generated") that I am extracting from another file called file7.txt and all the output goes into output.txt. First I tried creating a for loop over the Xfiles, and inside the loop the awk code, but didn't work, I understand I have to use the for loop inside the awk command, but after trying many times, I am not getting the output I am looking for.
So far this is one of the several versions I have:
Code:
awk '/Generated/ {print;getline; for (i in Xfile????); print "$i"; next}' file7.txt > output.txt

So far this gives me an error, now I realized the question mark is not properly understood as 'interchangeable' character within awk, and also the print "$i" prints literally $i and not the content of the corresponding Xfile. I have recently started using more unix commands to try to do more efficiently my work, and its been very useful (whenever I get through this kind of things). I will really appreciate if someone can help me here.
By the way, the output I expect to have on output.txt should look like this:
Code:
<first line saying "Generated ....." from file7.txt>
<content of Xfile0001>
<second line saying "Generated ..." from file7.txt>
<content of Xfile0002>
...
...
...

Thank you very much,
 

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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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