| delorie.com/archives/browse.cgi | search |
On Fri, 19 Oct 2001 10:12:30 -0500, Wayne Willcox <wayne AT reliant DOT immure DOT com> wrote:
>
> Well news flash Linux and windows are not the only OS's and the fact that
> redhat changed the behaviour in 1999 is recent. I have programs that
> are alot older then 2 years.
The Bash man page is dated May, 1995. Some of my scripts are about 9-10
years old and worked on 3 different Unices (DG/UX, IRIX and AIX) before
we moved to GNU/Linux (our only system currently).
> I was pointing out that it is a bad idea to
> write code that you know is not portable. Someday that bash only shell
> program you wrote just might need to be run somewhere else.
> [snip]
> Having an option -e is okay but my systems don't always have the latest
> versions of bash in fact they might not have bash at all. If I just use
> the -e now I have a bug. So now you have made me check if the -e is
> there or not if I care about portablity and want to use this feature.
> Aliases only work if you have them set and again you won't want them
> set for all systems. So again my point is not if this is current
> behaviour but that it was changed for no reason and breaks compatability
> for no reasons that I have yet heard.
I don't agree with you. My scripts (single copy of each) worked for
about a year on both DG/UX and Linux. I just had different system wide
initialization for the different machines (it was single script with
case `uname -s`). I still use even though all our machines (12) are
Linux now (now I have - case `hostname`).
> BTW: I use sh because I want my scripts to work on any system that is
> required. I only use ksh or bash when I need things like array support.
You misunderstood me. ALL my scripts has "#! /bin/sh " 1st line, and I
don't use features that only bash has (i.e. $[ ]. $( ) or aliases).
The only tcsh scripts we have are sourced from .cshrc/.login/.logout
for users who use tcsh as their interactive shell.
What I mean was that on Linux /bin/sh -> bash and I do the same for
my cygwin installation.
This whole discussion is VERY OFF TOPIC here, and I will not post
on this subject.
Ehud.
--
Ehud Karni Mivtach - Simon Insurance /"\
Tel: +972-3-7966-561 Fax: +972-3-7966-667 \ / ASCII Ribbon Campaign
(USA) Fax and voice mail: 1-815-5509341 X Against HTML Mail
Better Safe Than Sorry / \
mailto:ehud AT unix DOT simonwiesel DOT co DOT il http://www.simonwiesel.co.il
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Bug reporting: http://cygwin.com/bugs.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
| webmaster | delorie software privacy |
| Copyright © 2019 by DJ Delorie | Updated Jul 2019 |