Shell Programming and Scripting

Hi guys,

could someone tell me how i could create a label like this:

mybox01, mybox04, mybox12, mybox10 when i have the values "mybox1", "mybox4","mybox12","mybox10" as a prefix and a number. If the number is below 10 then add a zero before the number?

A one liner?

A long approach is to check the value of the number in the string and then to append a zero and then concat it with the prefix...is there a simpler sed way?

try this:

echo "mybox1", "mybox4","mybox12","mybox10","mybox111" | sed -e 's/\(mybox\)\([0-9]\),/\10\2,/g'


cheers,
Devaraj Takhellambam

Code:

 echo "mybox11" | sed -e 's/^mybox\([0-9]\{1\}\)$/mybox0\1/'