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Splitting a file based on a pattern

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# 1  
Old 02-16-2017
Splitting a file based on a pattern
Hi All,

I am having a problem. I tried to extract the chunk of data and tried to fix I am not able to. Any help please

Basically I need to remove the for , values after K,

this is how it is now
Code:
A,,
B,
C,C,
D,D,
12/04/10,12/04/10,
K,1,1,1,1,0,3.0,
K,1,1,1,2,0,4.0,
K,1,1,2,1,0,3.0,
K,1,1,2,2,0,3.0,


And I want it to be like
Code:
A,,
B,
C,C,
D,D,
12/04/10,12/04/10,
K,1,1,1,0,3.0,
K,1,1,2,0,4.0,
K,1,2,1,0,3.0,
K,1,2,2,0,3.0,


I tried to split the file. But I think there will be a way to do that without splitting

Code:
grep K file >> newfile

and splitting the new file record by record and joining back



Moderator's Comments:
Mod Comment Please use CODE tags as required by forum rules!
Last edited by RudiC; 02-16-2017 at 11:05 AM.. Reason: Changed QUOTE to CODE tags.
# 2  
Old 02-16-2017
Code:
awk -F, -v f2rm=3 '$1=="K" && NF>=f2rm {for(i=f2rm;i<NF;i++) $i=$(i+1); NF--}1' OFS=, myFile

# 3  
Old 02-16-2017
How about
Code:
awk -F, '/^K/ {sub ($3 FS, _)} 1' file
A,,
B,
C,C,
D,D,
12/04/10,12/04/10,
K,1,1,1,0,3.0,
K,1,1,2,0,4.0,
K,1,2,1,0,3.0,
K,1,2,2,0,3.0,

This User Gave Thanks to RudiC For This Post:
vgersh99
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