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get the file extension having multiple periods

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# 1  
Old 07-29-2010
get the file extension having multiple periods
How to get the file extension having multiple periods
suppose i have a file samplewprk.txt.dat

I need to retrieve txt.dat from the file.

I worked all iam getting is either txt or pyd

Could anyone help me in providing the solution?

Thanks,
in advance
# 2  
Old 07-29-2010
Code:
$> VAR=samplwprk.txt.dat
$> echo ${VAR#*.}
txt.dat

# 3  
Old 07-29-2010
Code:
# echo "samplewprk.txt.dat" | sed 's/[^.]*.//'
txt.dat

# 4  
Old 07-29-2010
Thankyou for the reply
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