sed -i 's/str1/rep1/;s/str2/rep2/;...;s/strN/repN/' urfile

sed -i 's/str1/rep1/;s/str2/rep2/;...;s/strN/repN/' urfile

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Liu Lantao
College of Information Science and Technology, Beijing Normal University
EMAIL: liulantao ( at ) gmail ( dot ) com ;
WEBSITE: http://www.liulantao.com/ .
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