remote login via korn shell script

[ruse7013]

How can I connect to a remote machine using rlogin (or other command) from within a korn shell script?

Also, if possible - how can I provide the userid and password automatically, so the script does not stop waiting for the password?

Thank you.

 

[gamerland]

The Korn shell is not stopping you. You should be able to rsh right from it, I do it all the time. It is most likely that your rhosts are setup incorrectly. [Or correctly and they do not want you to attempt what you are doing]

Rather than repeat the manual for you, or worse give you the RTFM response (my #1 pet irritant), look at rsh on your server (find the manual, I did not find the man page helpful). An even better option is to setup ssh. It is fairly easy to setup and once you build trusted keys, a 30 second process, sigining in requires neither an id or password. You scripts "just run"

http://www.openssh.com/

-cheers

 

[marsd]

Another better option to automate intweractive applications
is expect:

http://expect.nist.gov

 

[ruse7013]

gamerland and marsd,

Thank you for your reply. Still have some challenges...

My code is:
--------------------------
!/usr/bin/ksh

rksh remotehost find ${HOME} -name somefile

exit 0
--------------------------

Also, there is a .rhosts file in the 'remotehost' ${HOME} dir in the following format:
<IP Address> <mymachine.domain.com> <alias>, for instance:
192.168.100.100 mymachine.domain.com mymachine

After executing my script, I get this error:
--------------------------
rksh: remotehost: cannot open
--------------------------

What's the issue?
Thanks for your help.

 

[ruse7013]

Sorry, the first line of my code reads:
#!/usr/bin/ksh

 

[gamerland]

I see the issue:

rksh remotehost find ${HOME} -name somefile
should be

rsh remotehost find ${HOME} -name somefile

while rksh may appear logical, you are actually using the remote shell protocol, and it is shell independent. Also, to save yourself some problems later, always specify full directories on the remote server unless you are positive you know what HOME points to. For example:
rsh 123.123.123.123 ls /home/users/userid01

For other ksh info try here:

http://www.vis.ethz.ch/manuals/Unixkurs/ksh.html

it is a good overview.