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Remove the file content based on the Header of the file

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# 1  
Old 08-02-2012
Question Remove the file content based on the Header of the file
Hi All,

I want to remove the content based on the header information .
Please find the example below.

File1.txt

Code:
Name|Last|First|Location|DepId|Depname|DepLoc
naga|rr|tion|hyd|1|wer|opr
Nava|ra|tin|gen|2|wera|opra

I have to search for the DepId and remove the data from the DepId to the end of the file.

output.txt

Code:
Name|Last|First|Location|DepId
naga|rr|tion|hyd|1|wer
Nava|ra|tin|gen|2|wera

Thanks in Advance.
Last edited by Scott; 08-02-2012 at 06:59 AM.. Reason: Code tags, not quote tags, thanks.
# 2  
Old 08-02-2012
Code:
 
$ nawk -F\| '{for(i=1;i<=4;i++)printf("%s|",$i);print $5}' input.txt
Name|Last|First|Location|DepId
naga|rr|tion|hyd|1
Nava|ra|tin|gen|2

This User Gave Thanks to itkamaraj For This Post:
i150371485
# 3  
Old 08-03-2012
hi itkamaraj, Thanks for the reply.. i hope we can do the above only for the 5th filed.. if i want to search for the particular field and remove the fields from then.. the exact req is where ever the DepId is i have remove the all other coulumns after DepId.. Thanks for undertanding..
# 4  
Old 08-03-2012
try this..

Code:
 
awk -F\| 'NR==1{for(i=1;i<=NF;i++)if($i~/DepId/)val=i}{for(i=1;i<=val-1;i++)printf("%s|",$i);print $val}' input.txt

This User Gave Thanks to itkamaraj For This Post:
i150371485
# 5  
Old 08-03-2012
With gawk:
Code:
gawk -F\| 'NR==1{
for(i=1;i<=NF;i++)
 if($i~from)
 {
  fromn=i
  break
 }
 NF=fromn;print
 next
}{NF=fromn}1' from='DepId' OFS='|' infile

Just replace value of the from variable as per your requirement...
This User Gave Thanks to elixir_sinari For This Post:
i150371485
# 6  
Old 08-03-2012
@itkamaraj : The code is working as expected.. Thanks once again Smilie

@elixir_sinari : Thanks for replying.. working as expected Smilie Smilie
This User Gave Thanks to i150371485 For This Post:
Corona688
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