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How to remove unwanted " from string...

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# 1  
Old 07-07-2011
How to remove unwanted " from string...
I have this Input File with extra double quotes in the middle. Please suggest how to handle this condition.

Input File:
Code:
"123985","SAW CUT CONCRETE SLAB 20"THICK",,"98.57","","EACH","N"
"204312","ARMAFLEX-1 3/8 X 3"",,"2.48","","PER FOOT","N"
"205745","MISTING HEAD HOLLOW CONE "C" TYPE","",,"4.32","","EACH","Y"
"205621","DRILL BIT FOR "WOOD" AND GLASS","",,"9.26","","EACH","N"

The extra quote from 20" from line 1, 3" from line 2, "C" from line 3 and "WOOD" from line 4 will be removed.
Desired Output:
Code:
"123985","SAW CUT CONCRETE SLAB 20THICK",,"98.57","","EACH","N"
"204312","ARMAFLEX-1 3/8 X 3",,"2.48","","PER FOOT","N"
"205745","MISTING HEAD HOLLOW CONE C TYPE","",,"4.32","","EACH","Y"
"205621","DRILL BIT FOR WOOD AND GLASS","",,"9.26","","EACH","N"

Please advice.
Thanks in advance.
Last edited by Franklin52; 07-08-2011 at 03:40 AM.. Reason: Please use code tags for code and data samples, thank you
# 2  
Old 07-08-2011
This worked on the small test I ran:

Code:
sed 's/^"/~/; s/"$/~/; s/",/~,/g; s/,"/,~/g; s/"//g; s/~/"/g' in-file >out-file

It assumes that quotes to be kept are at the beginning/ending of the line, or are either preceded or trailed by a comma. It will not handle the case where something like 3" in the text is followed by a comma:

Code:
"204312","ARMAFLEX-1 3/8 X 3", NAT COLOUR",,"2.48","","PER FOOT","N"

If you have cases like this, then you'll need something a bit more robust.

Oh yea, it assumes no tildas (~) in the input!
Last edited by agama; 07-08-2011 at 12:21 AM.. Reason: clarification
# 3  
Old 07-08-2011
Thanks a LOT Smilie Agama... I will test it out and will let you know the result.
# 4  
Old 07-08-2011
Or try..
Code:
sed 's/\(,"[^",]\+\)"*\([^,"]*\)"*\([^",]*",\)/\1\2\3/g' inputfile

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