IF statements on the command line in bash

["Rodolfo J. Paiz" <rpaiz indahaus com>]

From the "I must have missed something" department:

I often find myself needing to do simple, short if's or for's from the 
command line. However, I can't seem to get the hang of it. As an example, 
these two don't work:

$ for i in 21 22 23 24 25 26 27 28 29 30 ; echo "Sep $i" ; done
$ if [ -x /etc/hosts ] ; echo "File exists." ; done

Can't find what's wrong from the man page; is it that you can't do this 
from the CLI, or am I doing something wrong?


--
Rodolfo J. Paiz
rpaiz indahaus com