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Shell Programming and Scripting

sorting/arrangement problem

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Top Forums Shell Programming and Scripting sorting/arrangement problem
# 8  
Old 05-25-2007
Quote:
Originally Posted by Abhishek Ghose
Hi,

I made small change to the code posted by Ygor...and that will apply to solution by Aigles too (remember, my problem is reassigning $4 doesnt modify $0). Heres the changed code:

awk 'BEGIN{FS=":"}{str=""; for(j=1;j<=NF;++j) str=sprintf("%s%s",str,$j)} (v[str]=="")||(v[str]>$4){v[str]=$4;a[str]=$0}END{for(i in a)print a[i]}' file1


Here are the tweaks:
(1) Now I have a new variable "str" - this doesnt have the 4th column values
(2) In the condition part, now I check for (v[str]=="") instead of (!v[str]) --- the latter throws an error on my system.

Thanks to everyone for the effort....

Regards, Abhishek
Sorry...the corrected code is (missed the conditional in the for loop):
awk 'BEGIN{FS=":"}{str=""; for(j=1;j<=NF;++j) if(j!=4) str=sprintf("%s%s",str,$j)} (v[str]=="")||(v[str]>$4){v[str]=$4;a[str]=$0}END{for(i in a)print a[i]}' file1
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LEARN ABOUT OSX

net::ldap::control::sortresult

Net::LDAP::Control::SortResult(3)			User Contributed Perl Documentation			 Net::LDAP::Control::SortResult(3)

NAME

       Net::LDAP::Control::SortResult - Server Side Sort (SSS) result control object

SYNOPSIS

	use Net::LDAP::Control::Sort;
	use Net::LDAP::Constant qw(LDAP_CONTROL_SORTRESULT);
	use Net::LDAP::Util qw(ldap_error_name);

	$sort = Net::LDAP::Control::Sort->new(
	  order => "cn -age"
	);

	$mesg = $ldap->search( @args, control => [ $sort ]);

	($resp) = $mesg->control( LDAP_CONTROL_SORTRESULT );

	if ($resp) {
	  if ($resp->result) {
	    my $attr = $resp->attr;
	    print "Problem sorting, ",ldap_error_name($resp->result);
	    print " ($attr)" if $attr;
	    print "
";
	  }
	  else {
	    print "Results are sorted
";
	  }
	}
	else {
	  print "Server does not support sorting
";
	}

DESCRIPTION

       "Net::LDAP::Control::SortResult" is a sub-class of Net::LDAP::Control.  It provides a class for manipulating the LDAP sort request control
       1.2.840.113556.1.4.474 as defined in RFC-2891

       A sort result control will be returned by the server in response to a search with a Server Side Sort control. If a sort result control is
       not returned then the user may assume that the server does not support sorting and the results are not sorted.

CONSTRUCTOR ARGUMENTS

       attr
	   If "result" indicates that there was a problem with sorting and that problem was due to one of the attributes specified in the sort
	   control. "attr" is set to the name of the attribute causing the problem.

       result
	   This is the result code that describes if the sort operation was sucessful. If will be one of the result codes describes below.

METHODS

       As with Net::LDAP::Control each constructor argument described above is also available as a method on the object which will return the
       current value for the attribute if called without an argument, and set a new value for the attribute if called with an argument.

RESULT CODES

       Possible results from a sort request are listed below. See Net::LDAP::Constant for a definition of each.

       LDAP_SUCCESS
       LDAP_OPERATIONS_ERROR
       LDAP_TIMELIMIT_EXCEEDED
       LDAP_STRONG_AUTH_REQUIRED
       LDAP_ADMIN_LIMIT_EXCEEDED
       LDAP_NO_SUCH_ATTRIBUTE
       LDAP_INAPPROPRIATE_MATCHING
       LDAP_INSUFFICIENT_ACCESS
       LDAP_BUSY
       LDAP_UNWILLING_TO_PERFORM
       LDAP_OTHER

SEE ALSO

       Net::LDAP, Net::LDAP::Control::Sort, Net::LDAP::Control, http://ww.ietf.org/rfc/rfc2891.txt

AUTHOR

       Graham Barr <gbarr@pobox.com>

       Please report any bugs, or post any suggestions, to the perl-ldap mailing list <perl-ldap@perl.org>

COPYRIGHT

       Copyright (c) 1999-2004 Graham Barr. All rights reserved. This program is free software; you can redistribute it and/or modify it under the
       same terms as Perl itself.

perl v5.16.2							    2012-09-20					 Net::LDAP::Control::SortResult(3)