Mailing-List: contact cygwin-help@sourceware.cygnus.com; run by ezmlm List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-owner@sources.redhat.com Delivered-To: mailing list cygwin@sources.redhat.com From: Chris Faylor Date: Tue, 8 Aug 2000 10:19:52 -0400 To: cygwin@sources.redhat.com Cc: DJ Delorie Subject: Re: Some comment about Cygwin1.1.4 Message-ID: <20000808101952.E20147@cygnus.com> Reply-To: cygwin@sources.redhat.com Mail-Followup-To: cygwin@sources.redhat.com, DJ Delorie References: <398EF5AD.97DC2CEC@onera.fr> <200008071749.NAA01544@envy.delorie.com> <398EFA1C.6EC280E7@onera.fr> <200008071834.OAA01863@envy.delorie.com> <398F0A7F.CD49D864@vinschen.de> <200008071916.PAA02265@envy.delorie.com> <398F0F75.82839993@veritas.com> <398FDC2B.55986AC7@telia.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.6i In-Reply-To: <398FDC2B.55986AC7@telia.com>; from c.christian.joensson@telia.com on Tue, Aug 08, 2000 at 12:08:43PM +0200 I usually do something like: (alias a=b) >/dev/null 2>&1 && echo "we're running bash" to detect which shell is in use. cgf On Tue, Aug 08, 2000 at 12:08:43PM +0200, Christian J?nsson wrote: >What about trying to execute "display-shell-version (C-x C-v)". If >we're in a bash shell, we'd get the verision info (works on both >bash1 and bash2) and I suppose that if we're on (a)sh we'd get nothing. > >Cheers, > >/ChJ > > >Bob McGowan wrote: >> >> DJ Delorie wrote: >> > >> > > echo $BASH_VERSION ? >> > >> > No, because if you run sh from bash, it may inherit that environment >> > variable. >> >> By default, it should not be exported, but a user could export it >> themselves. >> >> How about a double check of RANDOM? If it gets exported, the inherited >> value in (a)sh appears to be constant, while in bash it changes with >> each access. The only problem I can see with this is that a user could >> unset RANDOM, then make a new variable with that name, but which will >> not have the special feature. I would think that this is rare enough to >> maybe be ignored? >> >> -- >> Bob McGowan >> Staff Software Quality Engineer >> VERITAS Software >> rmcgowan@veritas.com >> >> -- >> Want to unsubscribe from this list? >> Send a message to cygwin-unsubscribe@sourceware.cygnus.com > >-- >Want to unsubscribe from this list? >Send a message to cygwin-unsubscribe@sourceware.cygnus.com -- cgf@cygnus.com Cygnus Solutions, a Red Hat company http://sourceware.cygnus.com/ http://www.redhat.com/ -- Want to unsubscribe from this list? Send a message to cygwin-unsubscribe@sourceware.cygnus.com