Re: joining array elements

[Wataru Kagawa <wkagawa@jota.gsc.riken.go.jp>]

Hi Peter,

I am not sure if I understand your question about the nullglob  
option, but regardless of the nullglob option,

   echo $foo

didn't output the right thing.  The difference between having or not  
having the nullglob option was, no output when nullglob option was  
set versus the following output when the nullglob option was turned off.

   zsh: no matches found: David\nMatt\nBob[return]Sara[return]Tim

print -r "$foo" worked under both conditions.  Actually, I wanted to  
pass the value to a command (zsh function), so the two examples you  
gave me,

>   usernames=(Bob Sara Tim)
>   usernames2=(David Matt ${(j.[return].)~~usernames})
>   foo=${(F)~~usernames2}
>
>   usernames=(Bob Sara Tim)
>   usernames2=(David Matt "${(j.[return].)usernames}")
>   foo="${(F)usernames2}"

are exactly what I was looking for.  They work perfectly.

Thank you very much.  I really appreciate all the help.

Wataru Kagawa