Please educate me

[Sylvain Petreolle]

> noticed that 
> 
> for ac_dir in /sbin:/usr/sbin:$PATH
> 
> was splitting as 
> 1. /sbin:/usr/sbin:/usr/local/bin
> 2. /bin
> 3. /usr/bin
> etc.

it's a normal behaviour, because for uses space as a
separator, not ':' ??

> 
> Now, I know I can force it to work by changing the
> for loop to 
> for ac_dir in /sbin /usr/sbin $PATH


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