Google URL decoder

googleurl2real:
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#!/bin/sh
# Convert Google's fuxnored URLs to the true URL

sed 's/^.*\&url=//; s/\&.*//' | urlenc2ascii
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urlenc2ascii
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#!/usr/bin/awk -f

# Print URL-encoded URL as ASCII

{
    fields = split( $0, tokens, "%", seps )
    for ( i=1; i<=fields; i++ ) {
        recode = ""; recode2 = "";
        if ( i == 1 ) printf( tokens[i] )
        if ( i > 1 ) {
            recode = "0x" tolower(substr(tokens[i], 1, 2));
            recode2 = strtonum( recode );
            printf( "%c", recode2 )
            printf( substr( tokens[i], 3 ))
            }
        }
    printf( "\n" )
}
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