Append 0 to a variable

Hi,

I have a variable... it can take a value from 1 to 99...

now when it is 1 to 9 i want to save it as 01 to 09 in the same variable... can this be done using sed or awk???

a=1

i want it as a=01

Thanks in advance...

a=$(printf "%02d" 1)

getting error as

 sprintf:  not found

I am using bash shell...

Try printf instead of sprintf

In ksh, you can do

typeset -Z2 a

You can try like...

for i in 0{1..9} {10..12}; do echo $i; done

Using seq:

for i in $(seq -w 1 99)

if [ $a -gt 0 -a $a -lt 10 ]
then
a="0$a"
fi
echo $a

My bad, sorry. I meant printf.