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Old 10-16-2007, 11:08 AM   #1
Lantzvillian
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Question Replacing text on specific lines with sed or awk?


Hey there,
I am looking for the command syntax to do the following.
On lines one and five replace x with y? Now I know sed could do something like that, but how is the question?

thanks,

Ronnie
 
Old 10-16-2007, 11:17 AM   #2
colucix
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A method with sed:
Code:
sed 's/x/y/;n;n;n;n;s/x/y/'
n reads next line.
 
Old 10-16-2007, 11:26 AM   #3
colucix
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And a method with awk
Code:
gawk 'NR==5||NR==1{sub("x","y")}{print}'
 
Old 10-16-2007, 11:41 AM   #4
Lantzvillian
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thanks gordie,
do you apply it to the text file exampletxt? gawk 'NR==5||NR==1{sub("x","y")}{print}' >exampletext
 
Old 10-16-2007, 11:54 AM   #5
Lantzvillian
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gotter thanks everyone
 
Old 10-17-2007, 09:00 AM   #6
juergen
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Another sed approach:
Code:
sed '1,5s/x/y/'
 
  


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