Date: Fri, 26 Nov 2004 12:44:44 -0600 From: "Conrad J. Sabatier" <conrads@cox.net> To: Giorgos Keramidas <keramida@ceid.upatras.gr> Cc: Don Wilde <Don@Silver-Lynx.com> Subject: Re: shell programming challenge Message-ID: <20041126124444.007749e8@dolphin.local.net> In-Reply-To: <20041126115731.GB1768@orion.daedalusnetworks.priv> References: <41A615CE.6010405@Silver-Lynx.com> <1101405587.63632.10.camel@dolphin.local.net> <20041125173018.0444d52c@dolphin.local.net> <20041126115731.GB1768@orion.daedalusnetworks.priv>
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On Fri, 26 Nov 2004 13:57:31 +0200, Giorgos Keramidas <keramida@ceid.upatras.gr> wrote: > On 2004-11-25 17:30, "Conrad J. Sabatier" <conrads@cox.net> wrote: > > > > OK, I think I've found what you're looking for: > > > > xterm -e "/usr/local/bin/bash --rcfile bash_commands -i" > > > > Substitute your program's startup script for "bash_commands" in the > > above. Using the "-i" switch to bash forces interactive mode, so > > when the script exits, you'll be returned to the shell prompt in the > > xterm. As it turns out, xterm's "-hold" switch is wholly unnecessary > > here. > > > > Note that the "--rcfile" switch, being a "double-hyphened" option, > > must precede the later "-i" switch in order to be recognized. > > Cool trick! Thanks. :-) > I was thinking something like adding the following to the local > .bashrc: > > [-- .bashrc --] > > if [ ! X"${BASHRC_LOCAL}" = X"" ] && \ > [ -r "${BASHRC_LOCAL}" ]; then > . "${BASHRC_LOCAL}" > fi > > Then running xterm with BASHRC_LOCAL set to the path of the local bash > script: > > BASHRC_LOCAL="/path/foo" xterm -e bash > > --rcfile is better though :-) Yes, it's much simpler, for sure. :-) By the way, there are some better testing constructs that eliminate the need for using the old sh trick of "X$SOMEVAR" to avoid syntax errors. The above expression could be written as: if [ -n ${BASHRC_LOCAL} -a -r ${BASHRC_LOCAL} ]; then ... Or using opposite logic: if [ ! -z ${BASHRC_LOCAL} ... Unix shells are just so damn cool, aren't they? :-) -- Conrad J. Sabatier <conrads@cox.net> -- "In Unix veritas"
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