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adding delimiter to a fixed width file

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# 1  
Old 03-21-2007
adding delimiter to a fixed width file
Hi ,

I have a file :

CSCH74000.00
CSCH74000.00
CSCH74100.00
CSCH74000.00
CSCH74100.00
CSCH74000.00
CSCH74000.00
CSCH74100.00
CSCH74100.00
CSCH74100.00

I have to put a delimiter( say comma) in between after 6th character:

CSCH74,000.00
CSCH74,000.00
CSCH74,100.00
CSCH74,000.00
CSCH74,100.00
CSCH74,000.00
CSCH74,000.00
CSCH74,100.00
CSCH74,100.00
CSCH74,100.00

another scenario is I have:

CSCH72007-03-012007-03-04000.00
CSCH72007-03-052007-03-11000.00
CSCH72007-03-122007-03-18100.00
CSCH742007-03-192007-03-25000.00
CSCH742007-03-262007-03-31100.00
CSCH742007-04-012007-04-01000.00
CSCH742007-04-022007-04-08000.00
CSCH742007-04-092007-04-15100.00
CSCH742007-04-162007-04-22100.00
CSCH742007-04-232007-04-29100.00

I have to put delimiters as following:

CSCH74,2007-03-01,2007-03-04,000.00
CSCH74,2007-03-05,2007-03-11,000.00
CSCH74,2007-03-12,2007-03-18,100.00
CSCH74,2007-03-19,2007-03-25,000.00
CSCH74,2007-03-26,2007-03-31,100.00
CSCH74,2007-04-01,2007-04-01,000.00
CSCH74,2007-04-02,2007-04-08,000.00
CSCH74,2007-04-09,2007-04-15,100.00
CSCH74,2007-04-16,2007-04-22,100.00
CSCH74,2007-04-23,2007-04-29,100.00

Can anyone suggest any idea. I think we will have to use awk to print the file in the file in that specific format.

Thanks
SUmeet
# 2  
Old 03-21-2007
for 1st eg
Code:
sed -e 's/./&,/6' file

for 2nd eg
Code:
sed -e 's/./&,/6' -e 's/./&,/17' -e 's/./&,/28' file

# 3  
Old 03-21-2007
I got it as well but is there any other generic way
awk '{OFS=","};{print substr($1,1,6),substr($1,7,12)}' FILE > sum1

Thanks
Sumeet
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