topic run the program with batch mode in Operating System - HP-UX

run the program with batch mode

peterchu — Thu, 27 Jan 2005 03:57:22 GMT

I have installed a program (eg. programA ), if the user run the program , it will ask the user to answer some questions ( assume all the answers are "yes" ), for simplier , is it possible to answer all the questions automatically by a batch mode ? so that the user no need to input many many times of "yes" thx in advance.
eg.
#run programA < answer.txt , where answer.txt contain the word "yes" .

Re: run the program with batch mode

Keith Bryson — Thu, 27 Jan 2005 04:05:33 GMT

Hi there

If you run the program from a script, you should be able to do something like this:

#----- start of script -----
#!/bin/ksh
/myprogram <

Re: run the program with batch mode

Peter Godron — Thu, 27 Jan 2005 04:52:55 GMT

Hi,
but be careful if the program you are calling is rm.
I just tried:
touch a.txt
chmod 444 a.txt
ll a.txt
rm a.txt << !
n
!
ll a.txt
AND THE FILE HAD BEEN REMOVED !

Re: run the program with batch mode

Keith Bryson — Thu, 27 Jan 2005 05:26:38 GMT

Peter (Gordon) - that's probably because rm wouldn't have prompted you anyway? rm -i would have (you are the owner of the file).

Keith

Re: run the program with batch mode

Peter Godron — Thu, 27 Jan 2005 05:40:36 GMT

Keith,
I tried the same rm from the command line and it responded with:
a.txt: 444 mode ? (y/n)

My note was purely a by-the-way, your solution is absolutely correct ;-)

Re: run the program with batch mode

Keith Bryson — Thu, 27 Jan 2005 05:52:57 GMT

Hi Peter(s)!

No worries. My rm doesn't behave like that by default, maybe we are using different flavours of Unix (I know Linux prompts for everything!).

Anyway, peter(chu) hope this has sorted your problem.

All the best - Keith

Re: run the program with batch mode

Matthew_50 — Sun, 30 Jan 2005 22:28:09 GMT

try 'expect' scripting.

Re: run the program with batch mode

Mohanasundaram_1 — Mon, 31 Jan 2005 05:11:42 GMT

Hi Peterchu,

If all the user inputs are going to be "yes", then why should the script ask a question, in the first place?

Your script can be made to run with all the "yes" conditions as the assumed answer.

WIth regards,
Mohan.