run the program with batch mode

[peterchu]

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" .

[Keith Bryson]

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 <

[Peter Godron]

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 !

[Keith Bryson]

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

[Peter Godron]

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 ;-)

[Keith Bryson]

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

[Matthew_50]

try 'expect' scripting.

[Mohanasundaram_1]

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.