Hello my friends:

I want to rsh or ssh to a server, then do some actions on the server like:

=========================
#!bin/bash/
rsh -l username servername
cp /home/username/
mkdir src/
=========================

Right now I have the following questions:
1) Why I can successfully log on the server without typing the password?
2) Why I can't
cp /home/username
mkdir src/
after I am on the server?

It seems the actions written within my local scripts have no effect on the server. How to solve this problem?
Or is this bash's nature? If so, are there any other script language can make it?

Thanks!

When you use a script to rsh to a remote host, your local shell process waits until the rsh command completes. What you are seeing at your console is the output from rsh, which is getting its input from the output of the process which is running on the remote host.
If you want to execute a series of commands on the remote host, you have a couple of options:
1. Create a shell script and transfer it to the remote host, and then have rsh invoke that script as its command argument (man rsh).
2. Use something such as expect (man expect) to issue command strings according to some scripted plan.
3. A scriptable terminal emulator such as C-Kermit may be able to perform the rsh and respond to feedback from the remote host.
--- rod.

Help me a lot.

Thanks!

As far as loggin to a server without a password that would require you put your public key on the server:
Here are the instructions.