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Re: function grammar
From: |
Clark J. Wang |
Subject: |
Re: function grammar |
Date: |
Mon, 19 Jul 2010 10:02:02 +0800 |
On Mon, Jul 19, 2010 at 2:53 AM, Linda Walsh <bash@tlinx.org> wrote:
>
>
> from man bash, to define a function use;
>
> "function" "name" <compound-command>
> OR
> "name" () <compound-command>
>
> right?
>
> And Compound Commands are:
>
> ( <list>)
> { <list>; )
> (( expression ))
> [[ expression ]]
> ...et al....
>
> so why do I get a syntax error for
>
> function good_dir [[ -n $1 && -d $1 && -r $1 && -x $1 ]]
>
> bash: syntax error near unexpected token `[['
>
> You should enclose the function body code in between `{' and `}':
function good_dir { [[ -n $1 && -d $1 && -r $1 && -x $1 ]]; }