bash-2.x
Matthias Morche
Matthias.Morche@sat1.de
Fri Jul 24 00:25:00 GMT 1998
Jan Nieuwenhuizen wrote:
...
> for name [ in word; ] do list ; done
> The list of words following in is expanded, gener-
> ating a list of items. The variable name is set to
> each element of this list in turn, and list is exe-
> cuted each time. If the in word is omitted, the
> for command executes list once for each positional
> parameter that is set (see PARAMETERS below). The
> return status is the exit status of the last com-
> mand that executes. If the expansion of the items
> following in results in an empty list, no commands
> are executed, and the return status is 0.
>
> Which means that empy word-list is valid, and shouldn't trigger
> an error.
>
> 10:55:25 mub ~/ftp/gnu/bash-2.02$ for i in ;do echo $i; done
> bash: syntax error near unexpected token `;d'
...
An empty word list is valid, but the syntax requires not to use the "in"
keyword in that case:
for i do echo $i ; done
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