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UNIX shells script to echo out the date value

 
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# 1  
Old 05-07-2015
UNIX shells script to echo out the date value
I appreciate if someone answer this question for my learning purpose:

Given a filename structure of a COUNTRY CODE, file type, date (YYYYMMDD) and two digit attempt number with an extension of ".dat", write a UNIX shells script to echo out the date value.
Example: US_TRANSACTIONS_20090131_01.DAT would display 20090131
# 2  
Old 05-07-2015
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