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negate search within sed

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# 1  
Old 07-28-2008
negate search within sed
I working fine with following statement -

sed '/search_pattern/ s/pattern1/pattern2/' file_name

requirement changes , now i want negate the search something like -

sed '! /search_pattern/ s/pattern1/pattern2/' file_name (this doesn't work)


anybody can plz tell the correct syntax for this..
# 2  
Old 07-28-2008
Code:
sed '/search_pattern/! s/pattern1/pattern2/' file_name

Jean-Pierre.
# 3  
Old 07-29-2008
That works perfact!!
Thankyou very much .
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