Create sequence with zero padding

Hmm I got to pull series of git source from 01-13. But I'm too lazy so I googled then I found

program `seq`

I don't know it much but it can

>>> seq 1 10
1
2
3
4
5
6
7
8
9
10

>>> seq -w 1 10
01
02
03
04
05
06
07
08
09
10

>>> seq -w 01 10
01
02
03
04
05
06
07
08
09
10

Aha, So I see the light!!

>> for id in `seq -w 01 13`; do git pull XXXXX$id; done;

Yeh,! Many thank to links below!! :)

http://stackoverflow.com/questions/6446672/generating-huge-lists-of-numbers
http://stackoverflow.com/questions/8789729/zero-padding-in-bash

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