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Full Discussion: sort and semi-duplicate row - keep latest only
Top Forums Shell Programming and Scripting sort and semi-duplicate row - keep latest only Post 302274650 by summer_cherry on Thursday 8th of January 2009 04:25:10 AM
Old 01-08-2009
Code:
#! /usr/bin/perl
open FH,"a.txt";
while(<FH>){
	chomp;
	@arr=split("[|]",$_,3);
	$hash{$arr[1]}=$_;
}
close FH;
map {print $hash{$_},"\n"} sort keys %hash;

Code:
nawk '{
	split($0,arr,"|")
	_[arr[2]]=$0
}
END{
	for(i in _)
		print _[i]
}' a.txt | sort -t"|" +1

 

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LEARN ABOUT PHP

sybase_result

SYBASE_RESULT(3)														  SYBASE_RESULT(3)

sybase_result - Get result data

SYNOPSIS

       string sybase_result (resource  $result, int  $row, mixed  $field)

DESCRIPTION

	Returns the contents of the cell at the row and offset in the specified Sybase result set.

	When  working  on  large  result sets, you should consider using one of the functions that fetch an entire row (specified below). As these
       functions return the contents of multiple cells in one function call, they're MUCH quicker than sybase_result(). Also, note that specifying
       a numeric offset for the field argument is much quicker than specifying a fieldname or tablename.fieldname argument.

	Recommended high-performance alternatives: sybase_fetch_row(3), sybase_fetch_array(3) and sybase_fetch_object(3).

PARAMETERS

	      o $result
		-

	      o $row
		-

	      o $field
		-  The field argument can be the field's offset, or the field's name, or the field's table dot field's name (tablename.fieldname).
		If the column name has been aliased ('select foo as bar from...'), use the alias instead of the column name.

RETURN VALUES

       sybase_result(3) returns the contents of one cell from a Sybase result set.

PHP Documentation Group 													  SYBASE_RESULT(3)
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