As requested: s/buy/buying/;s/nokia/Nokia/;s/stolk/stock/;s/who/Who/ echo "I'm thinking of buy some nokia stolk again. who is with me and who is against me?" | sed 's/buy/buying/;s/nokia/Nokia/;s/stolk/stock/;s/who/Who/' I'm thinking of buying some Nokia stock again. Who is with me and who is against me? $50 proofing fee, please. Thank you!