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Automate response to prompt

 
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Old 07-02-2008
Automate response to prompt
I'm running a program in the terminal on a computer running ubuntu. After inputing a file containing 900 data sets, I have to enter the line number a particular data set I want to analyze begins on, followed by the number that corresponds to the type of analysis I want. I have to do this for every single set of data, which I don't so much mind when the sets are fairly small. However, my most recent file has 900 sets of data, and I'd love to automate the process. Basically, I'd like to create a program that, when prompted with a request for the line number, automatically enters 1+n*44, return, 3, return. And I'd like it to run from n=0 all the way to n=899, preferably in sequential order.
Any idea how to do this? Can one even set up a program that responds to the prompts of another program? Is this even the right forum for a question like mine? Or do I need to start learning my 44 times tables and clearing out my social schedule? Thanks!
 
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LEARN ABOUT DEBIAN

xtell

XTELL(1)						      General Commands Manual							  XTELL(1)

NAME

       xtell - sends a message to another computer running xtelld

SYNOPSIS

       xtell [-v] [user[:tty][@host[:port]]] [message]

       write  user [tty]

DESCRIPTION

       How to use it: suppose you want to send a message to user gubas on computer trener.fsport.uniba.sk Just type:

       prompt:~% xtell gubas@trener.fsport.uniba.sk Hi

       To send multiple lines long message to user 7tokarova at computer pascal.fmph.uniba.sk, type

	prompt:~% xtell 7tokarova@pascal.fmph.uniba.sk
	Hi
	How are you today
	Please answer
	^D

       in this case, finish sending messages with EOF (CTRL D)

       If you want to send message to user holik on local computer, you can do it either by typing:

	prompt:~% xtell holik@localhost Hi

       or simply:

	prompt:~% xtell holik Hi

       To send message to certain tty, append the tty to username, separated by colon:

	prompt:~% xtell stanys:ttyp2@reaktor.ip.fmph.uniba.sk 'Sveikas Tomai'

       will send message 'Sveikas Tomai' to user stanys on ttyp2 at computer reaktor.ip.fmph.uniba.sk

       To specify other port than the default 4224, append the port to computer name, separated by colon:

	prompt:~% xtell bosa@radon.dnp.fmph.uniba.sk:4000 'Ahoj'

       assumes the xtell daemon runs at computer radon on port 4000, and sends the message 'Ahoj' to user bosa.

       Option -v turns verbose mode on. Xtell will then display some messgaes about connecting, which is usefull especially when the connection is
       slow.

       Example:

	prompt:~% xtell -v rybar@dmpc.dbp.fmph.uniba.sk

       xtell invoked without parameters will ask user for username and host to send the message to.

       If the user has created in his/her/its home directory the file .xtell-log, and the file is writable by nobody, all messages will be written
       to this file as well as to the screen (handy when the screen is overwritten and you could not see the message).

       xtell checks the environmental variable XTELLPROMPT.  If it exists, it is used as prompt for messages.

       Last  notice:  if you do not think zsh is the best shell, (besides doing a mistake) replace prompt:~% in above text with prompt:~$ or what-
       ever :-)

AUTHOR

       Radovan Garabik (garabik@melkor.dnp.fmph.uniba.sk)

SEE ALSO

       xtelld(8), write(1), talk(1), talkd(8), tty(1)

BUGS

       What happens to .xtell-log when two messages arrive simultaneously? There is no locking implemented.

																	  XTELL(1)