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Top Forums Shell Programming and Scripting Help In Calculation of large values in loop Post 302135808 by vgersh99 on Wednesday 12th of September 2007 07:41:00 PM
Old 09-12-2007
Quote:
Originally Posted by sandeepb
Thanks for reply

The numbers i need to pick up are decided based on certain beginning value
of a comma separated values and only for specific rows in a file, i am able to get these values stripped out in a separate file, only the calcualtion is coming wrong. Say a.txt is a file and following are the contents :

12345678912
123458785454
145645645454
4548778545487
545645
79879878978787878


I am opening this file to perform addition in loop.

Pls. comment
Sandeep
so does the proposed solution work on the the 'a.txt' file or not?
I get a value of '79884709207988830' for the posted sample a.txt

If you do your 'stripping' [no pun inteded] with 'awk', you might be able to do your additions in the same awk script with no need for the intermediate 'stripped' file.
 

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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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