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Full Discussion: Saving file content in arrays using AWK
Top Forums Shell Programming and Scripting Saving file content in arrays using AWK Post 302495009 by atikan on Wednesday 9th of February 2011 05:39:16 AM
Old 02-09-2011
Requirement: To make a script that could extract a few numbers falling in a closed range from a dump file that has the complete list of numbers.
There should be two inputs to this script.
1. the dump file (complete list)
2. the file containing closed ranges (the one that i've mentioned in my previous post) [inp.txt]

Now the script should read from inp.txt and construct an array for the 1st field(start number of range) and another one for the 2nd field(last number of range) and search for this range of numbers from the dump.txt file(complete list of numbers). And save the numbers qualifying in the closed ranges into an output file.

I've made a code that will do the above mentioned searching. But the problem is that i need to feed in the start and end numbers of each range one by one. i want to modify my code upto the next level where it only asks for the file that contains the range lists and keeps running my code until all the records of the range file(inp.txt) have been processed

below is my code
Code:
echo Please input start of range
read min
echo Please input end of range
read max
echo Please input dump file
read file

nawk -v min=$min -v max=$max '$0 >= min && $0 <= max' "$file" >> out.txt

pls tell if there is anything more that u need. thanx
 

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LEARN ABOUT DEBIAN

numrange

NUMRANGE(1)						User Contributed Perl Documentation					       NUMRANGE(1)

NAME

       numrange - Print out a range of numbers for use in for loops and such.

SYNOPSIS

       numrange [-dhV] /<expression>/

DESCRIPTION

       numrange will print out a list of numbers based on an expression that you specify.  This is useful for making a list of numbers for use in
       for loops and so on.  Ranges are inclusive.  Ranges of numbers are specified using the .. operator, like this /20..50/, which means all
       integers from 20 to 50 inclusive.  More complex expressions can be generated using the commas and the 'i' increment operator.

OPTIONS

	   -e <set> Exclude the <set> of numbers from the range output.  <set>
	      is a set of numbers separated by commas.
	   -n <n> Use <n> as the separator between numbers.  By default, it
	      will use a space.  Use '
' or \n for a newline character or
	      use the -N option.
	   -N  Just a quick option for using a newline as the separator.

	   -h  Help: You're looking at it.
	   -V  Increase verbosity.
	   -d  Debug mode.  For developers

EXAMPLES

	  All numbers from 1 to 10.
	   $ numrange /1..10/
	   1 2 3 4 5 6 7 8 9 10

	  From 10 to 1. Counting down.
	   $ numrange /10..1/
	   10 9 8 7 6 5 4 3 2 1

	  From 1 to 10 and from 15 to 20.
	   $ numrange /1..10,15..20/
	   1 2 3 4 5 6 7 8 9 10 15 16 17 18 19 20

	  Even numbers from 0 to 10
	   $ numrange /0..10i2/
	   0 2 4 6 8 10

	  Odd numbers.	Notice the starting number in the range expression.
	   $ numrange /1..10i2/
	   1 3 5 7 9

	  Factors of 3 between 99 and 120.
	   $ numrange /99..120i3/
	   99 102 105 108 111 114 117 120

	  Decimal numbers
	   $ numrange /1.1..2.5i0.1/
	   1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2 2.1 2.2 2.3 2.4 2.5

	  And negative numbers too.
	   $ numrange /1.0..-2.0i0.3/
	   1 0.7 0.4 0.1 -0.2 -0.5 -0.8 -1.1 -1.4 -1.7 -2

	  You can also pad numbers when you are counting up.  This is
	  a trick of how the Perl programming language deals with ranges:

	   $ numrange /01..15/
	   01 02 03 04 05 06 07 08 09 10 11 12 13 14 15

BUGS

       Even though you can do zero padding on simple ranges, like 001..100, it will not pad zeros on complex ranges like 001..100i2, or for
       counting downwards.

SEE ALSO

       seq(1), numaverage(1), numbound(1), numinterval(1), numnormalize(1), numgrep(1), numprocess(1), numsum(1), numrandom(1), numround(1)

COPYRIGHT

       numrange is part of the num-utils package, which is copyrighted by Suso Banderas and released under the GPL license.  Please read the
       COPYING and LICENSE files that came with the num-utils package

	 Developers can read the GOALS file and contact me about providing
       submitions or help for the project.

MORE INFO

       More info on numrange can be found at:

       http://suso.suso.org/programs/num-utils/

perl v5.10.1							    2009-10-31							       NUMRANGE(1)
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