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From: Bart Schaefer <schaefer@brasslantern.com>
Message-id: <140206200141.ZM27955@torch.brasslantern.com>
Date: Thu, 06 Feb 2014 20:01:41 -0800
In-reply-to: <ld0k6c$a3a$1@ger.gmane.org>
Comments: In reply to Thorsten Kampe <thorsten@thorstenkampe.de>
 "Executing command on reattaching to screen session" (Feb  6,  7:27pm)
References: <ld0k6c$a3a$1@ger.gmane.org>
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To: zsh-users@zsh.org
Subject: Re: Executing command on reattaching to screen session
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On Feb 6,  7:27pm, Thorsten Kampe wrote:
}
} Every time I login, /etc/motd is displayed. Since I hardly ever log 
} out and in, I'd like to have the same functionality when reattaching 

Perhaps a better way to do this is to put something in your precmd
hooks so that the /etc/motd is shown when it has changed?  E.g.,

  latest_motd() {
    if [[ /etc/motd -nt ~/.last_motd ]]
    then
      cp --preserve=timestamps /etc/motd ~/.last_motd
      cat ~/.last_motd
    fi
  }
  add-zsh-hook precmd latest_motd