On Thu, Aug 05, 1999 at 02:53:02PM +0200, E.L. Meijer (Eric) wrote:
> Says Mike:
> > bash shells can do:
> >
> > let a=$b+$c*$d
> > let a=($b+$c)*$d
> >
> > but if you want to ensure compatibility with Bourne shells like
> > ash, you should stick to:
> >
> > a=$(($b+$c*$d))
> > a=$((($b+$c)*$d))
>
> but if you want to ensure compatibility with Bourne shells like
> the Bourne shell :), you should stick to
>
> a=`expr $b + $c \* $d`
> a=`expr \( $b + $c \) \* $d`
>
> to complicate things, the spaces in the expression after `expr' are
> required.
>
I stand corrected :)
It's been a LONG time since I've use the authentic one-and-only
Bourne shell. How many Bourne shell clones do we have floating
around here these days?
Mike
[Private mail welcome, but no need to CC: me on list replies.]
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Michael Merten
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