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Top Forums Shell Programming and Scripting Retreive latest occurrence if there are multiple occurences Post 302266825 by summer_cherry on Thursday 11th of December 2008 05:33:23 AM
Old 12-11-2008
hi,

Below perl should also be ok.

Code:
open FH,"<a.txt";
foreach(<FH>){
	@tmp=split("	",$_);
	$hash{$tmp[0]}=$_;
}
for $key (sort keys %hash){
	print $hash{$key};
}
close FH;

 

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MB_STRPOS(3)								 1							      MB_STRPOS(3)

mb_strpos - Find position of first occurrence of string in a string

SYNOPSIS
int mb_strpos (string $haystack, string $needle, [int $offset], [string $encoding = mb_internal_encoding()]) DESCRIPTION
Finds position of the first occurrence of a string in a string. Performs a multi-byte safe strpos(3) operation based on number of characters. The first character's position is 0, the second character position is 1, and so on. PARAMETERS
o $haystack - The string being checked. o $needle - The string to find in $haystack. In contrast with strpos(3), numeric values are not applied as the ordinal value of a character. o $offset - The search offset. If it is not specified, 0 is used. o $encoding -The $encoding parameter is the character encoding. If it is omitted, the internal character encoding value will be used. RETURN VALUES
Returns the numeric position of the first occurrence of $needle in the $haystack string. If $needle is not found, it returns FALSE. SEE ALSO
mb_internal_encoding(3), strpos(3). PHP Documentation Group MB_STRPOS(3)
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