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find and replace! Urgent

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# 8  
Old 03-06-2009
sed -e '/startwork-expr/,/endwork-expr/s/find-expr/replace-expr/' file

by using this method SED will start working when it finds PAYMENT and will stop working when it finds ConversionPattern then it will replace what you find on the line containing ConversionPattern.
# 9  
Old 03-09-2009
Thanks. It worked!
# 10  
Old 03-10-2009
Code:
#!/usr/bin/perl
open FH,"<a.txt";
$/="\n\n";
while(<FH>){
	s/^(.*name="PAYMENTLOG".*)(%c{1})(.*$)/$1%p,$2$3/s;
	print $_;
}
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