I am using Ruby's Telnet class to establish a session with a remote
Linux machine to automate some remote administrative tasks.
The problem I am facing is this- At one point I come across a menu,
where the arrow keys have to be used to select certain options.
Is there any way to represent the arrow keys in the string that I am
sending to the remote machine?
Do let me know if you have any other ideas/suggestions?
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Arindam Goswami wrote:
I am using Ruby's Telnet class to establish a session with a remote
Linux machine to automate some remote administrative tasks.The problem I am facing is this- At one point I come across a menu,
where the arrow keys have to be used to select certain options.Is there any way to represent the arrow keys in the string that I am
sending to the remote machine?Do let me know if you have any other ideas/suggestions?
instead of trying to make ruby know uve pushed an arrow key, think of
what command pressing a certain key does, then try to execute that
command in ruby code 
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Arindam Goswami wrote:
Is there any way to represent the arrow keys in the string that I am
sending to the remote machine?
Typing gets in irb and then hitting the four arrow keys (in the order up,
down, right, left) (and then enter) gives me:
"\e[A\e[B\e[C\e[D\n"
HTH,
Sebastian
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Michael Linfield wrote:
instead of trying to make ruby know uve pushed an arrow key, think of
what command pressing a certain key does, then try to execute that
command in ruby code
Hi Michael,
In this case, only an option is selected in a UI menu ... and no, I cant
modify/add or even read the code on the remote machine.
So I will have to send out the symbol(s) for the down arrow key over the
telnet session.
and thats where I am stuck.
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try irb:
STDIN.getc
... type arrow ...
... type return ...
=> 27 .. ESC
STDIN.getc
=> 91 .. [
STDIN.getc
=> 67 .. C
STDIN.getc
=> 10 .. (return)
My guess is : "\033[C" (\033 = octal for 27)
Gaspard