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Date:	Sun, 21 Aug 2011 14:50:36 -0400
From:	Charles Wilson <cygwin AT cwilson DOT fastmail DOT fm>
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To:	Cygwin Mailing List <cygwin AT cygwin DOT com>
Subject:	dash incompatibility in /etc/profile
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Running 'dash -l' flags an error in /etc/profile:

if [[ -n ${BASH_VERSION} ]]; then
  HOSTNAME=$(/usr/bin/hostname)
  profile_d sh
  [[ -f "/etc/bash.bashrc" ]] && . "/etc/bash.bashrc"
elif [[ -n ${KSH_VERSION} ]]; then
  typeset -l HOSTNAME=$(/usr/bin/hostname)
  profile_d sh
  PS1=$(print
'\033]0;${PWD}\n\033[32m${USER}@${HOSTNAME}\033[33m${PWD/${HOME}/}\033[0m\n$
')
elif [[ -n ${ZSH_VERSION} ]]; then
  HOSTNAME=$(/usr/bin/hostname)
  profile_d zsh
  PS1='(%n@%m)[%h] %~ %% '


these uses of '[[' are not supported by dash, although apparently posh
supports them.

I was trying to launch 'dash' from cmd.exe, in such a way that the
default Windows values of TMP, TMPDIR, and TEMP were overridden.  For
now I can do

> set ENV=~/.dashinit
> dash

but...can we use /bin/test or a regular '[' here?

--
Chuck

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