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Shell Programming and Scripting

Split Large Files Based On Row Pattern..

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# 8  
Old 11-26-2013
Quote:
Originally Posted by aimy
Oh God, you are so kind Don.

Thank you so much!

But would you mind to explain a little bit about the code? Why FNR <=2 not FNR == 2?

Thanks.
It might be clearer to write:
Code:
FNR == 1 { next }
FNR == 2 { h = $0; next }

but:
Code:
FNR <= 2 { h = $0; next }

is less typing and accomplishes the same thing. Setting h to the contents of the 1st line is unnecessary, but it is reset to the contents of the 2nd line when the 2nd line is processed.
Last edited by Don Cragun; 11-26-2013 at 02:18 AM.. Reason: Add missing space.
This User Gave Thanks to Don Cragun For This Post:
aimy
# 9  
Old 11-26-2013
@ Don

I think you forgot to close ofile (close(ofile)), I suspect he might face problem if many files are open while handling big file
# 10  
Old 11-26-2013
Quote:
Originally Posted by Akshay Hegde
@ Don

I think you forgot to close ofile (close(ofile)), I suspect he might face problem if many files are open while handling big file
That was discussed in messages #2 and #3 in this thread.
# 11  
Old 11-26-2013
Yes.. Sorry I just seen it.
# 12  
Old 11-26-2013
Hi.

Sorry to bother again.

But when I execute against the real file, there's a such situation that the text itself contains comma ",", so I have to make it pipe "|" separated instead.

So, how do I split the file with "|" delimiter?

I've tried analyzing the script but could not find where could I tune in to replace the "," with "|".

Thanks.
# 13  
Old 11-26-2013
Code:
awk -F"|" ' {................}' file

OR
Code:
awk '{................}'  FS="|" file

# 14  
Old 11-26-2013
Thanks a lot Akshay.
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