Re^2: How to put email addresses in a variable and send mails via mailx command

... or use explicit string concatenation, which is messier IMHO, but should work just as well:
open(MAILPIPE,'|/bin/mailx -s "Happy Birthday" ' . $email) or die "Can't open pipe $!";

Give a man a fish: <%-{-{-{-<

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Re^3: How to put email addresses in a variable and send mails via mailx command by Anonymous Monk on Dec 24, 2015 at 21:45 UTC
but should work just as well: both versions are vulnerable to shell interpolation	[reply]
Re^4: How to put email addresses in a variable and send mails via mailx command by AnomalousMonk (Archbishop) on Dec 24, 2015 at 22:42 UTC
both versions are vulnerable to shell interpolation How so? Can you please give an example? Give a man a fish: `<%-{-{-{-<`	[reply] [d/l]
Re^5: How to put email addresses in a variable and send mails via mailx command by Anonymous Monk on Dec 24, 2015 at 22:50 UTC
How so? Can you please give an example? Because they both invoke the shell? See https://metacpan.org/pod/perlipc#Safe-Pipe-Opens	[reply]
Re^6: How to put email addresses in a variable and send mails via mailx command by Anonymous Monk on Dec 24, 2015 at 22:54 UTC