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Shell Programming and Scripting

change format problem

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# 1  
Old 04-09-2009
change format problem
Someone can help for the following fromat change can done by script?

i.e. insert the perivous colurm's first variable if below line don't have the varaible start from AXXX....

From
Code:
A123,B123,C123
B123,C123
A234,B234,C234
A345,B345,C345
B345,C34
B345,C345
B345,C345
A456,B456,C456

to
Code:
A123,B123,C123
A123,B123,C123
A234,B234,C234
A345,B345,C345
A345,B345,C34
A345,B345,C345
A345,B345,C345
A456,B456,C456

Please help , Thank you
Last edited by Yogesh Sawant; 04-09-2009 at 07:13 AM.. Reason: added code tags
# 2  
Old 04-09-2009
Try this:

Code:
awk -F, '!/^A/{$1=s;print;next}{s=$1","$2;print}' OFS="," file

Regards
# 3  
Old 04-09-2009
Thank you so much~~Franklin52 you are a genius~SmilieSmilie
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