Re: For KDE: Re: how to hide the mouse pointer
On Mon, 7 May 2007 17:34:18 -0700
Andrew Sackville-West <andrew@farwestbilliards.com> wrote:
> On Mon, May 07, 2007 at 08:27:45PM -0400, Celejar wrote:
> > On Mon, 7 May 2007 16:10:24 -0700
> > Andrew Sackville-West <andrew@farwestbilliards.com> wrote:
> >
> > > On Mon, May 07, 2007 at 11:04:02PM +0200, Sjoerd Hiemstra wrote:
> > > > Manon Metten wrote:
> > > > > BTW: what's the first line "#!/bin/bash" in the script for?
> > > >
> > > > It is not really necessary, but it has some advantages.
> > > > The 'file' command will recognize the file as a script, there are
> > > > certain other programs (emacs?) that will treat it as such.... and
> > > > here is where my limited knowledge ends.
> > > > I'm sure others could say more about it.
> > > >
> > >
> > > it ensures script compatibility across different systems. There is no
> > > guarantee that the default shell on a system will be bash, so this
> > > specifies to the shell interpreter to use bash instead of the default
> > > shell. It could just as easily be some other shell: csh, ksh, plain
> > > sh, or whatever. Its likely not necessary for something as simple as
> >
> > Minor nit: in Debian, '/bin/sh' is a symlink to bash; I don't know what
> > it is on other systems. So IIUC, when you write '#!/bin/sh', you aren't
> > really specifying a shell, but are rather saying 'use the standard
> > shell'.
>
>
> heh. minor nit back.
>
> from man bash
>
> If bash is invoked with the name sh, it tries to mimic the
> startup behavior of historical versions of sh as closely as
> possible, while conforming to the POSIX standard as well.
>
> so it does in fact make some (don't ask me what) difference in the
> shell. ;-P
>
> A
Live and learn. But what is '/bin/sh' on other systems? Do all shells
have that 'sh' mimicking behavior?
Celejar
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