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delete lines in unix

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# 1  
Old 05-06-2008
delete lines in unix
Hi Can anyone please provide me soln for below:

I want to remove the word "system" from all the lines containing "#" and remove two lines below it.

file1:

!
system alpha#close
logs
login
!


Result Required:

!
alpha#
!
# 2  
Old 05-06-2008
This only removes "system", as requested; if you want to remove more (as in your example output), feel free to adapt it, or at least describe what you really want.

Code:
vnix$ sed -e '/\#/{s/system//p;N;N;d;}' <<HERE
> !
> system alpha#close
> logs
> login
> [B]![B]
> HERE
!
 alpha#close
!

Why is this in the "advanced" forum?
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