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Full Discussion: While-loop with awk
Top Forums Shell Programming and Scripting While-loop with awk Post 302134066 by vgersh99 on Tuesday 28th of August 2007 02:54:17 PM
Old 08-28-2007
ok, NOW I think I understand:

# this will split it into '2' columns and do the avg - '2' is the default # of columns
nawk -f bag.awk myList

# this will split it into '3' columns and do the avg
nawk -v n=3 -f bag.awk myList
bag.awk:
Code:
BEGIN {
    n=(n=="") ? 2 : n
}
{
   idx=(FNR%n) ? FNR%n  : n
   sum[idx] += $0
   nf=(idx>nf) ? idx : nf
   nr=((FNR%n) == 1) ? nr+1 : nr
}

END {
    for(i=1; i<=nf; i++)
        printf("%s%s", sum[i]/nr, (i==nf) ? "\n" : OFS)
}

Last edited by vgersh99; 08-28-2007 at 04:12 PM.. Reason: fixed the 'nr' pivot
 

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LEARN ABOUT SUNOS

script

script(1)							   User Commands							 script(1)

NAME

       script - make record of a terminal session

SYNOPSIS

       script [-a] [filename]

DESCRIPTION

       The  script  utility  makes a record of everything printed on your screen. The record is written to filename. If no file name is given, the
       record is saved in the file typescript. See WARNINGS.

       The script command forks and creates a sub-shell, according to the value of $SHELL, and records the text from this session. The script ends
       when the forked shell exits or when Control-d is typed.

OPTIONS

       The following option is supported:

       -a	Appends the session record to filename, rather than overwriting it.

NOTES

       script places everything that appears on the screen in filename, including prompts.

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+
       |CSI			     |Enabled			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       attributes(5)

WARNINGS

       script  can  pose  a  security risk when used in directories that are writable by other users (for example, /tmp), especially when run by a
       privileged user, that is, root. Be sure that typescript is not a link before running script.

SunOS 5.10							    30 Jan 2004 							 script(1)
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