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Date: Wed, 20 Jun 2012 07:16:00 -0000
Message-ID: <CAKeUZfyjvJm08KveF4bVpWW7FORi5OHi8g_zH4rvJ2FPQFm9pQ@mail.gmail.com>
Subject: Ask for help on running interactive cmd in Mintty!
From: Tian You <youtian001@gmail.com>
To: cygwin@cygwin.com
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Hi All

I'm running a perl program like this:

## script start ##
print "Please input:";
my $input = <STDIN>;
chomp $input;

system("ssh to a remote machine to run an command");
print "done\n";
## script done ##

But after I input something and press enter, I can not see the output
of the ssh command.
Only after I press any key, the output flushes out to the screen.
Is the output buffered? But why it flushed after I press any one key?

What is stranger is, if I remove the read STDIN line, and just run the
system("ssh ..."), lI can see the output of ssh command at once.
The script is like this:

## script start ##
#print "Please input:";
#my $input = <STDIN>;
#chomp $input;

system("ssh to a remote machine to run an command");
print "done\n";
## script done ##

Anyone can help on this?

Regards,
Tian

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