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Re: changing directory


On Fri, Jun 09, 2000 at 05:56:20PM +0200, Mikael Djurfeldt wrote:
> Ivan Toshkov <ivant@ifao.net> writes:
> 
> > On Fri, Jun 09, 2000 at 05:19:53PM +0200, Mikael Djurfeldt wrote:
> > > Olivier Buechel <Olivier.Buechel@unifr.ch> writes:
> > > 
> > > > This may be more scheme than guile;
> > > > When i do a systemcall (system "wget www.xy.zz") the file wget will
> > > > download will be saved in the current shell directory
> > > >  i.e. (system "pwd"). How can i change my current directory?
> > > 
> > >   (chdir "xxx")
> > > 
> > > > I tried
> > > > (system "cd /home/buechel/download") but this has not changed. What
> > > > does it do then?
> > > 
> > > It changes the directory in the subshell which Guile has started.
> > 
> > I thought that (system ...) forks and execs another shell each time it
> > is evaluated, which too explains this "wrong" behavior.
> 
> Well, that is consistent with what I said, since "another shell" would
> be a subshell, right?

Right, I misinterpreted your previous sentence.

> 
> However, the Scheme level `system' actually calls OS system.  That is,
> it is synchronous, and does not fork.

-- 
Ivan Toshkov

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