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Date: Fri, 02 Jan 2015 13:53:48 -0800
From: Ray Andrews <rayandrews@eastlink.ca>
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To: zsh-users@zsh.org
Subject: Re: symlink chain.
References: <549E3A7B.9010209@eastlink.ca>
 <20150102170307.7d2e644a@ntlworld.com> <54A6E6B1.6070201@eastlink.ca>
 <20150102212422.3a761af5@ntlworld.com>
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Another little gotcha:

    $ whence -s /usr/bin/zsh
    /usr/bin/zsh -> /usr/local/bin/zsh-5.0.7-165-g2194da1

    $ whence -sa /usr/bin/zsh
    (nothing)


... why would the '-a' switch kill the '-s' switch?

But only sometimes:

    $ whence -as zsh

    /usr/local/bin/zsh -> /usr/local/bin/zsh-5.0.7-165-g2194da1
    /usr/bin/zsh -> /usr/local/bin/zsh-5.0.7-165-g2194da1
    /bin/zsh -> /usr/local/bin/zsh-5.0.7-165-g2194da1

... with the broader search pattern, '-as' is happy to show the symlink.