awk '{if ( $5 != 0) {print $1" "$2" "$3" "$4" "$5}}' < www.harvard.edu > www.harvard.edu2 mv www.harvard.edu2 www.harvard.edu awk '{if ( $5 != 0) {print $1" "$2" "$3" "$4" "$5}}' < www.unisa.edu.au > www.unisa.edu.au2 mv www.unisa.edu.au2 www.unisa.edu.au awk '{if ( $5 != 0) {print $1" "$2" "$3" "$4" "$5}}' < www.nationalgallery.org.uk > www.nationalgallery.org.uk2 mv www.nationalgallery.org.uk2 www.nationalgallery.org.uk awk '{if ( $5 != 0) {print $1" "$2" "$3" "$4" "$5}}' < www.tu-dresden.de > www.tu-dresden.de2 mv www.tu-dresden.de2 www.tu-dresden.de awk '{if ( $5 != 0) {print $1" "$2" "$3" "$4" "$5}}' < mail.hs-bremen.de > mail.hs-bremen.de2 mv mail.hs-bremen.de2 mail.hs-bremen.de