Every time you interpolate something, the \ characters will get "evaluated" out of the statement or expression (there is probably a better way to say that, but thats the best I can manage this early in the morning...) .

The qq{} operator allows to you double quote a string without having to use the double quote " character. Thus you don't need to escape those particular characters with \'s.

Try this:

$goodtxt = qq{asterisk -rx "celliax_sendsms line0/$word[3] "Good Passw
+ord""};
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Update: If you actually want a literal \ in the output, then you'd need to use a double \\ . So you might actually want:

$goodtxt = qq{asterisk -rx "celliax_sendsms line0/$word[3] \\"Good Pas
+sword\\""};
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