Can sed be used to take a existing record and reverse the order of defined character placement if there is no delimeters?

existing record:

0123456789CO

expected result:

9876543210CO

if there were delimeters I could define the delimeter and each placement would have an id which I could reconstruct by using the print $ command but without delimeters how do you assign the pacemnet ot a variable?


Thanks

That would be a lot of work in sed. Here is a ksh solution:

#! /usr/bin/ksh

x="0123456789CO"

y=${x%??}
save=${x#${y}}

newy=""
while ((${#y})) ; do
        tempy=${y%?}
        char=${y#${tempy}}
        y=$tempy
        newy=${newy}${char}
        echo $y $char $newy
done

x=${newy}${save}
echo $x
exit 0