Passing password with command

neha_perl_help has asked for the wisdom of the Perl Monks concerning the following question:

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Re: Passing password with command by Joost (Canon) on Sep 14, 2007 at 21:56 UTC
if your program really reads from STDIN (update: instead of reading the terminal input directly - some unix programs read from /dev/tty for sensitive information, for example) and the command name really starts with a dash and you wouldn't try to redirect the output, it might work. Try this: `my $pwd1 = "pwd1"; my $pwd2 = "pwd2"; open(FOO, "\|$command") or die "open command failed: $!"; print FOO "$pwd1\n$pwd2\n"; close FOO;` [download] update 2: redirecting the output shouldn't have any serious consequences, but it may help in that it may show error messages that otherwise might get redirected "What should it profit a man, if he should win a flame war, yet lose his cool?"	[reply] [d/l]
Re: Passing password with command by runrig (Abbot) on Sep 14, 2007 at 21:23 UTC
Maybe the command doesn't accept input through stdin. If this is a unix-ish system and something like ~~this~~ the following doesn't work from the command line, then look into Expect or the command line expect: `command <<EOT pwd1 pwd2 EOT` [download] Updated wording. Update: Original post has been updated so this and any other answers no longer make any sense. Bad OP. Bad, bad OP. BTW, The 'EOT' thing is a "here doc" and is generally a unix concept (though there is the same sort of thing from within perl).	[reply] [d/l]
Re^2: Passing password with command by bruceb3 (Pilgrim) on Sep 14, 2007 at 21:47 UTC
Using a here document means that the input is being read from STDIN, which isn't what is needed.	[reply]
Re^3: Passing password with command by runrig (Abbot) on Sep 14, 2007 at 21:52 UTC
Maybe what I wrote is confusing...I said (or tried to say) to try a here document, and if it doesn't work, then the command does not read from STDIN, and then go look into expect.	[reply]