scripting with interruptions

dpnctl · 03-18-2010, 06:12 AM

Hi Team,
We have a program which needs some information to be fed. (Like ssl certificate generation.).
This activity takes around 40 servers. Is there a possibility to make entries in a text file and parse the same to the program.
The program will be a part of the script.
Warm regards
dpnctl

chrism01 · 03-18-2010, 06:26 AM

If(!) i understand the qn, you'll want the Expect tool.

catkin · 03-18-2010, 06:36 AM

If I understand the question (and I understand it differently from chrism01!) then, yes, a script can take values from a file. The easiest way is to create a file which is a snippet of shell script and to source it. Here's a simple illustration.

Code:

c@CW8:/tmp$ echo 'x=15' > input.txt
c@CW8:/tmp$ source input.txt
c@CW8:/tmp$ echo $x
15

chrism01 · 03-18-2010, 06:42 AM

I think he wants both; he wants to be able to feed values into progs that accept human type input (like when you generate an SSL cert at the cmd line). He'll need the answers in a file, then use Expect to feed them into the program.