#!/bin/bash

[Martin Hepworth]

<OT>
Crikey DG/UX that bring back memories...I remember struggling to port code
this pile of wackiness (login/authentication stuff)

And SUNOS 4 - still used in production here!

</OT>

--
Martin Hepworth 
Snr Systems Administrator
Solid State Logic
Tel: +44 (0)1865 842300
> -----Original Message-----
> From: MailScanner mailing list [mailto:MAILSCANNER at JISCMAIL.AC.UK] On
> Behalf Of Glenn Steen
> Sent: 11 January 2006 09:42
> To: MAILSCANNER at JISCMAIL.AC.UK
> Subject: Re: [MAILSCANNER] #!/bin/bash
> 
> On 11/01/06, Nerijus Baliunas <nerijus at users.sourceforge.net> wrote:
> > On Wed, 11 Jan 2006 04:10:51 +0000 Julian Field
> <mailscanner at ECS.SOTON.AC.UK> wrote:
> >
> > > I entirely agree with you. I will have to go through the scripts that
> > > have this and try to check that they don't have any bash-isms that I
> > > know of. The only one that springs to mind is
> > >       export VARIABLE=value
> > > which I will need to change to
> > >       VARIABLE=value
> > >       export VARIABLE
> > >
> > > What else should I be looking for? I tend to write for whatever
> > > version of sh happens to be on the system I'm writing on at the time.
> > > Bad practice, I know :-(
> 
> Using features you can test reliably being a bad practise? no:-).
> Look for variable arithmetics... and almost any substitution can be
> problematic (usually aren't, but still:).
> I'm not sure I agree about the portability of bourne shells though...
> nor korn for that matter. Been bitten in the past by things like "cmd
> 2>&1 > file" needing to be "cmd > file 2>&1" (more posixly correct,
> true)... So insisting on bash isn't an entirely stoopid thing, since
> things like that will be the same across platforms... My problems were
> mainly in the ancient past (sunos4->aix 2.1-> diab denix, and more
> recently going from DG/UX R4.20MU06&07 -> AIX 5.2), so might not be
> that relevant:-):-).
> 
> > The easiest thing would be to release a new beta version with /bin/sh
> > everywhere and let the users test it :)
> 
> Definitely the most effective method:)
> --
> -- Glenn
> email: glenn < dot > steen < at > gmail < dot > com
> work: glenn < dot > steen < at > ap1 < dot > se
> 
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