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perl search replace on file

Snippet Instead of being asleep at 23:19 on 25 October 2009, kitt created this:

Search and replace all instances of string in file on command line

perl -p -i -e 's/oldstring/newstring/g' *
 
perl -p -i -e 's/oldstring/newstring/g' `find ./ -name *.html`
Source: 
Perl Oneliner: Recursive Search and Replace
#perl