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Re: Builtin append() and prepend() to PATH, CDPATH, etc.

X-seq: zsh-workers 1245
From: Zoltan Hidvegi <hzoli@xxxxxxxxxx>
To: fclim@xxxxxxxxxxxxxx (Fung-Chai Lim)
Subject: Re: Builtin append() and prepend() to PATH, CDPATH, etc.
Date: Sun, 2 Jun 1996 23:26:10 +0200 (MET DST)
Cc: zsh-workers@xxxxxxxxxxxxxxx
In-reply-to: <9606021800.AA01569@xxxxxxxxxxxxxxxxxxxx> from Fung-Chai Lim at "Jun 3, 96 01:59:27 am"

> For example, zsh has `pushd_ignore_dups'.  I think it would be easy
> to add a builtin function, say, `uniq-var' that, like `export', accept
> a variable list of arguments.  An example is
> 	$ uniq-var PATH CDPATH MANPATH

>From zsh-2.6-beta17 you can use typeset -U path cdpath manpath which does
exactly what you want.

> After evaluating this statement, modifying any of the 3 variables
> would ensure no duplication:
> 	$ set path = (/usr/local/bin $path /usr/bin)

This is the csh syntax.  In zsh you have to write

$ path=(/usr/local/bin $path /usr/bin)

Zoltan

References:
- Builtin append() and prepend() to PATH, CDPATH, etc.
  - From: Fung-Chai Lim

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