How to align digits in BASH/SH?

M

microphone2015-03-24 16:56:09

bash

microphone, 2015-03-24 16:56:09

How to align number width in BASH/SH
For example: there is a stream that needs to be generated like this
"prefix"+"4digit_number"+"postfix"
D0001ba
D2ba
...
D10ba
...
<--
how to align the number of characters in a number?
D0001ba
D0002ba
...
D0010ba
D0011ba
<-- want this

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A

Armenian Radio, 2015-03-24
@microphone

printf "PREFIX%04dPOSTFIX\n" 50
PREFIX0050POSTFIX