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From: "Bernard A Badger" <bab AT vx DOT com>
To: "CygWin Users' List" <cygwin AT cygwin DOT com>
Subject: [OT: Perl] RE: Better solution for calling 'net use' from Cygwin Perl?
Date: Thu, 16 May 2002 10:31:37 -0400
Message-ID: <INEKLKBFCDBPKMKAJLMDIENHCCAA.bab@vx.com>
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This is just a Perl, tid-bit, so disregard if you're not interested in
Perl arcana.
> -----Original Message-----
> You might also want to keep any shells from getting involved with your
> arguments; they sometimes treat '\' badly:
> 
> my $share =  "//storigen1u21/sfstest";
> $share =~ s,\\,/,g;
> system( "c:/WINDOWS/system32/net.exe", "use", "t:", $share );

Surprisingly to me, 
	system( "c:/WINDOWS/system32/net.exe use t: \"$share\"" );
doesn't invoke a shell either.

The reason is that the "system" function will break the string into words
and call exec as long as there aren't any (in Perl's opinion)
shell metacharacters (like [<>$] and I don't know what-all) in the string.

The multi-arg form is guaranteed to run exec, not a shell,
but the single-arg form is often more readable.



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