Carriage Return in a script -

[rmueller58]

All,

I have a question, perhaps one of you can give me an idea of what to do. We are running
Informix 7.3.1UD8 Online Engine,


I have a script I’ve been running manually arch_pei.sh

# cat arch_pei.sh
#!/bin/sh
cd /snapfileserver2
mv level0.pei old.level0.pei
touch level0.pei
chown informix:informix level0.pei
chmod 660 level0.pei
ontape -s -L 0
rm old.level0.pei
#


FWIW the line "ontape -s -L 0" in the script prompts for a mount
Please mount tape 1 on /snapfileserver2/level0.pei

the file and location in question is disk and not tape.


When I run this I am prompted to enter a carriage return at the ONTAPE LINE . How with in this script can I echo or force a carriage return to run this script? Should I use expect?

If any one wth Informix experience sees this they may have a work around.. I'd appreciate it.

Rex Mueller - Educational Service Unit #3
Omaha, NE

[Peter Godron]

Hi,
how about something along these lines:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=971561

[James R. Ferguson · Accepted solution]

Hi Rex:

I would try:

# ontape -s -L 0 < /dev/null

Regards!

...JRF...

[spex]

Hi Rex,

I'm not familiar with 'ontape', but perhaps this would work:

...
chmod 660 level0.pei
ontape -s -L 0 << _EOF_

_EOF_
rm old.level0.pei
...

PCS

[Raj D.]

Omaha,

Check this out:

You can use the below ,Hope this can help,

echo "\r" | ontape -s -L 0


That will provide a carriage retrun after it will ask after doing intital process by ontape ,

Cheers,

[Raj D.]

Omaha,

Check this out:

You can use the below ,Hope this can help,

echo "\r" | ontape -s -L 0


That will provide a carriage retrun after it will ask after doing initial process by ontape ,

Cheers,

[Raj D.]

Omaha,

Also you can do like this :

# echo "\r" | ./arch_pei.sh

That will add a carriage when it will prompt,


Cheers,
Raj.

[rmueller58]

Thanks All, both the
< /dev/null
and the
echo "\r" worked, I didn't try the others.. Appreciate the assist.

I didn't think I'd have to resort to writting an expect script to handle something as simple as a carriage return!

Thanks !!

[Raj D.]

Rex , thx for the quick review.
Well , sorry! for the multiple posting happend due to itrc site access problem and due to multiple click,. Hope you understood that.

And nice to know that the script worked.
Enjoy,Cheers,
Raj.


(ps: 0 pts pls)

[Peter Godron]

Rex,
could you please confirm that you read the answers provided in the link in my first post ?

Solutions given in that link were:
expect and/or redirct of input (use of <<)

[rmueller58]

Peter,

Yes, I did read the other thread.. I've been using Expect for many other things.. However for this "issue" I felt it was not merited to use it at this point.
I do keep references to refer back to when I script. My brain doesn't always recall things like it used to 10 years ago. :D

[Peter Godron]

Rex,
did you also read on in that link and see Steve Lewis's solution - which was the use of << EOF

Rather than just answering a particular problem with a one-liner I try to find a previous thread which suggests a number of solutions, as users tend to have preferences.

In this case, the use of << was one answer (as also offered by Spex). You mentioned expect as a possible solution in your description.

[rmueller58]

Yes, <
Thank you.

[rmueller58]

Thanks All.