catching screen output in a script 2

[nimrodman]

I was wondering if anyone can tell me how I can catch and use the return of a command, if I run a command and the return says SUCCESS, how can I catch that and say something like :

If the result is success do something if not exit, I know how to do the conditional statement, but I do not know how to catch the result, thanks.

 

[geirendre]

The "expect" scripting-language can do that.

http://expect.nist.gov/

http://expect.nist.gov/FAQ.html

In the most basic form you build together
send and expect pairs of commands
to automate the interaction with something.
It can do decision-making also.

And with a script called autoexpect you can
"record" a conversation and make an expect-script that will
duplicate what was recorded.

HTH

 

[elgrandeperro]

Is the command interactive (do you have to type a bunch of stuff at it) or is it argument driven? If it is the latter, it is just a matter of saving stdout.

eugene

 

[Annihilannic]

In other words:

somecommand > /tmp/somecommand.out
# grep quietly, for you search through my streams...
if grep -q SUCCESS /tmp/somecommand.out
then
    echo "somecommand was successful"
    # do some stuff
else
    echo "somecommand failed"
    exit 1
fi

Annihilannic.