Geoff Clare <g...@opengroup.org> wrote:

> > in dash 0.5.8-2.3 and in BusyBox v1.22.1 sh (ash):
> > 
> > $ foo=abcdef; echo "${foo#'ab'}"
> > abcdef
> > 
> > but the other shells regard them as special:
> > 
> > $ foo=abcdef; echo "${foo#'ab'}"
> > cdef
> > 
> > So, is this also unspecified like double quotes? Or should it
> > be specified that they are special, in which case, dash / ash
> > are buggy?
>
> Dash conforms to the standard if you execute it as "sh".

(exec -a sh dash)
$ foo=abcdef; echo "${foo#'ab'}"
abcdef

So dash behaves in default mode and in "sh" mode the same as /usr/xpg4/bin/sh
but different than ksh93

Jörg

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