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Re: Pipes & ExecResult/ReturnsZero

From: Mark . Burgess
Subject: Re: Pipes & ExecResult/ReturnsZero
Date: Wed, 30 Nov 2005 07:54:26 +0100 (MET)
User-agent: SquirrelMail/1.4.4

> Is it expected that pipe characters will continue to work in ExecResult
> even though they no longer work in ReturnsZero? ExecResult still honors
> pipe characters inside double-quotes, while ReturnsZero only honors them
> inside single quotes.
> localdate = ( ExecResult(/bin/sh -c "/bin/date | grep 2005") )
> Whereas ReturnsZero requires opposite quoting to work with pipes
> properly:
> ResolvesX = ( ReturnsZero(/bin/sh -c 'nslookup ""  2>&1
> | grep >/dev/null') )
> It seems inconsistent to make these two functions require opposite
> quoting. Was this intended, or will there be a ShellCommandExecResult in
> the future?
> Thank you,
> -Jason Martin

The quopting is the same, but neither of the fnuctions uses a shell. I
made an ExecShellResult function for convenience. We could do the same for
RetrunsZero is necessary. The quoting I recommend however (latest patchr
eleases) is to always have quotes around the shell string and to backslash
quptes inside them

Func("/bin/sh -c \"my string\"")


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