UNIX for Advanced & Expert Users

#! /usr/bin/ksh

function dodir
{
        typeset fname data savedir
        ls | while read fname ; do
                if [[ -L $fname ]] ; then
                        data=$(ls -l $fname)
                        data=${data##* }
                        data=$(echo "$data" | sed 's=myfoo=yourfoo=')
                        echo rm $1/$fname
                        echo ln -s $data $1/$fname
                elif [[ -d $fname ]] ; then
                        savedir=$(pwd)
                        cd $fname
                        dodir $savedir/$fname
                        cd $savedir
                fi
        done
        return
}

dodir $(pwd)
exit 0