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Re: for loop question

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From: Bart Schaefer <schaefer@xxxxxxxxxxxxxxxx>
To: Ray Andrews <rayandrews@xxxxxxxxxxx>
Subject: Re: for loop question
Date: Sun, 2 Nov 2014 13:00:14 -0800
Cc: Zsh Users <zsh-users@xxxxxxx>
In-reply-to: <5456984A.3020001@eastlink.ca>
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> I've fiddled around with various modifications but it seems to dislike "
[ -n "$TLC[i]" ] "
> even though the 'while' loop is happy with it.  That expression evaluates
to true or
> false, does it not? So why won't 'for' swallow it?

The double parents (( )) are special arithmetic syntax.  You can't use an
ordinary shell command like "test" ( for which "[" is an alias) inside that
construct.

References:
- for loop question
  - From: Ray Andrews

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