How in OS/X to get 'seq' command-line functionality?

Question

I'm still on Snow Leopard (I know...) so forgive if this is fixed in one of the later versions of OS/X, but I want to do standard "seq" aka:

for i in `seq 1 100` ; do
  cat /whatever > $i.txt ;
done

I thought installing GNU tools would do it, but apparently not.

Answer 1

On my mac both of these work (OS X 10.8.5)

Andreas-Wederbrands-MacBook-Pro:~ raven$ for i in {1..10}; do echo $i; done
1
2
3
4
5
6
7
8
9
10
Andreas-Wederbrands-MacBook-Pro:~ raven$ for i in `seq 1 10`; do echo $i; done
1
2
3
4
5
6
7
8
9
10