Re: variable assignments and parameter expansion in a single command

[Chet Ramey]

Mike Frysinger wrote:
> i'm trying to determine whether POSIX allows for utilizing of variables in 
> simple commands that were defined earlier in the same command ... in other 
> words, whether this snippet:
> unset A B
> A="moo" B="$A more"
> echo $A , $B
> should display moo twice or just once:

As I read Posix, twice, as long as there are only assignment statements
in the command.  Assignment statements preceding simple commands are
treated differently.

Chet
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Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/