David Kastrup wrote:
> Robert Schiele <rschiele@xxxxxxxxx> writes:
>
> > On Thu, Aug 02, 2007 at 12:44:22PM +0200, David Kastrup wrote:
> >> ! logfile="${1#-?}"
> >
> > You can't do something like that on /bin/sh on many systems (for
> > instance Solaris).
>
> Sigh. It's in Posix.
Well Solaris is (kind of) Posix compliant---you need some extra effort
to get it into Posix "mode":
login@~ > uname -a
SunOS login 5.10 Generic_125100-10 sun4u sparc
login@~ > sh
$ set tralala
$ echo "${1#tra}"
lala
$ ^D
the "problem" here is, that my PATH includes /usr/xpg4/bin before
/usr/bin and that's non-standard (for Solaris). That is
/usr/xpg4/bin/sh is Posix compliant and /usr/bin/sh is compatible to
former versions of Solaris/SunOS and this one doesn't support these
substitutions:
login@~ > /usr/bin/sh
$ set tralala
$ echo "${1#tra}"
bad substitution
Having
login@~ > ls -l /bin
lrwxrwxrwx 1 root root 9 2006-07-03 09:29 /bin -> ./usr/bin
sadly the Solaris sh is used for shell scripts that use a shebang line
calling /bin/sh.
Best regards
Uwe
--
Uwe Kleine-König
http://www.google.com/search?q=5+choose+3
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