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Awk multidimensional Array

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# 1  
Old 09-01-2008
Awk multidimensional Array

Hello Experts,,

Can anybody give me a brief idea what is following bold letter statement is for!!
what is the term called so that I can google for it..

It seems to be an array inside another array..

        /TXADDR/ { txaddr=$NF }  ##understood 
        /TXDATA/ { txdata[txaddr,++txindex[txaddr]]=$NF } ##not understood 
' infile

# 2  
Old 09-02-2008
Answered here:

In short, yes, it is using the contents of one array value as an index to another array.

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