Random word generation with AWK


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# 1  
Random word generation with AWK

Hi - I have a word GTTCAGAGTTCTACAGTCCGACGAT

I need to extract all the possible "chunks" of 7 or above letter "words" from this.

SO, my out put should be

GTTCAGA
TTCAGAG
TCAGAGT
CAGAGTTCT
TCCGACGAT
CAGTCCGACG


etc.

How can I do that with awk or any other language? I have no clue where to start.

Thanks a lot in advance.
# 2  
Code:
echo "GTTCAGAGTTCTACAGTCCGACGAT" | perl -nle 'for ($j=7;$j<=length($_);$j++){for ($i=0;$i<=length($_)-$j;$i++){print substr($_,$i,$j)}}'

# 3  
@bartus

thanks a lot for the quick reply. It works like charm. SmilieSmilie
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