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Full Discussion: awk programming -Passing variable to awk for loop
Top Forums Shell Programming and Scripting awk programming -Passing variable to awk for loop Post 302913314 by ctrld on Friday 15th of August 2014 08:28:10 AM
Old 08-15-2014
awk programming -Passing variable to awk for loop
Hi All,


I am new to AWK programming. I have the following for loop in my awk program.

cat printhtml.awk:
Code:
     
BEGIN
-------- <some code here>
END{
----------<some code here>
   for(N=0; N<H; N++)
        {
                for(M=5; M<D[N,0]; M++) print "\t" D[N,M] "";
        }
-----
}

This "for" loop is part of a large awk program.
This program takes input a simple text file in below format:

Quote:
Column1 Column2 Column3 Column4
Row1 1 2 3 4
Row2 3 4 B ABC
Row3 DEF XYZ 6 8
Row4 Sample Sam1 Sam2 Sam3
The "for" loop prints from 5th line till end of the input file.
I am trying to create a html table using this variable D[N,M].
I want to print every word in a cell so that the final output creates a HTML Table code.
Using the below code I could convert a simple text file to html table but I am not able to put the same logic to my "for" loop.

Code:
awk 'BEGIN{print "<table> <table border=2>"} {print "<tr>";for(i=1;i<=NF;i++)print "<td>" $i"</td>";print "</tr>"} END{print "</table>"}' input_txt.txt > htmloutput.html

I have tried like this:

Code:
        for(N=0; N<H; N++)
        {
                for(M=5; M<D[N,0]; M++) print "<table> <table border=2><tr>";
                for(i=1;i<=NF;i++)
                {
                        print "<td>\t" $i"</td>";print "</tr>" D[N,M];
                }
                print "</table></td>";
        }

How do I pass the variable D[N,M] to a second loop to create a td class?
 

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LEARN ABOUT DEBIAN

dpkg-awk

DPKG-AWK(1)						      General Commands Manual						       DPKG-AWK(1)

NAME

       dpkg-awk - Utility to read a dpkg style db file

SYNOPSIS

       dpkg-awk [(-f|--file) filename] [(-d|--debug) ##] [(-s|--sort) list] [(-rs|--rec_sep) ??] '<fieldname>:<regex>' ... -- <out_fieldname> ..

DESCRIPTION

       dpkg-awk  Parses  a  dpkg status file (or other similarly formatted file) and outputs the resulting records.  It can use regex on the field
       values to limit the returned records, it can also be told which fields to output, and it can sort the matched fields.

OPTIONS

       -f filename
       --file filename
	      The file to parse.  The default is /var/lib/dpkg/status.

       -d [#]
       --debug [#]
	      Each time this is specified, it increased the debug level.

       -s field(s)
       --sort field(s)
	      A space or comma separated list of fields to sort on.

       -n field(s)
       --numeric field(s)
	      A space or comma separated list of fields that should be interpreted as numeric in value.

       -rs ??
       --rec_sep ??
	      Output this string at the end of each output paragraph.

       -h
       --help Display some help.

       fieldname
	      The fields from the file, that are matched with the regex given.	The fieldnames are case insensitive.

       out_fieldname
	      The fields from the file, that are output for each record.  If the first field listed begins with ^, then the list  of  fields  that
	      follows will NOT be output.

BUGS

       Be  warned  that  the author has only a shallow understanding of the dpkg packaging system, so there are probably tons of bugs in this pro-
       gram.

       This program comes with no warranties.  If running this program causes fire and brimstone to rain down upon the earth, you will be on  your
       own.

       This program accesses the dpkg database directly in places, querying for data that cannot be gotten via dpkg.

AUTHOR

       Adam Heath <doogie@debian.org>

DEBIAN
								 Debian Utilities						       DPKG-AWK(1)
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