Carnegie Mellon University Website Home Page
 
Skip navigation and jump directly to page content
Documentation Index
Unix
Using Unix & the Andrew System
What is UNIX?
What is Andrew?
Using Other Computers from Andrew
Accounts
Network, Phone & TV
Software
Email & Calendar
Secure Your Computer
Clusters & Printing
Web Services
Classroom & Event Support
Education & Outreach
Support & Repair
Information Security Office (ISO)

Using Other Computers From Andrew

Running Jobs on Other Andrew Workstations

rem allows you to run a job on an Andrew workstation other than the one you are logged into. It uses the butler program to locate an available workstation and then sends the command you give it to that workstation to be executed.

To run a command using rem , at the system prompt

  1. Type rem -system command and press Return.
    In the above -system is the system type you would like to run the command on, and command is the command you want to run.

See the help document Running Programs and Commands for more information on rem and Butler.

Talking to Other Andrew Workstations

talk is a visual communication program which copies lines from your terminal to that of another user. It is also available by typing ucbtalk.

To start talk:

  1. Type talk userID@hostname at the system prompt and press Return.
  • If invoked inside an h19 or xterm window, talk will run in that environment. If invoked in a typescript window, then either an h19 or an xterm window will be created (depending on the window manager currently being used) so that talk can be run in an environment that provides proper terminal emulation.
  • If you wish to talk to someone on your own machine, then just the person's login name, i.e., userID. If you wish to talk to a user on another host, then you need to use the full host name. If you want to talk to a user who is logged in more than once, the ttyname argument may be used to indicate the appropriate terminal name.

    When first called, talk sends the message:
Message from New Talk_Daemon@their_machine...



talk: connection requested by your_name@your_machine.
talk: respond with: talk your_name@your_machine

to the user you wish to talk to.

To reply to a talk request,

  1. Type talk your_name@your_machine at the system prompt and press Return.

    It doesn't matter from which machine the recipient replies, as long as their login-name is the same. Once communication is established, the two parties may type simultaneously, with their output appearing in separate windows.

    See the help on talk for more information.

Running Jobs on Other Systems

To create a secure communication with another host, you'll need to use a secure TELNET client.

To start ssh:

  1. Type ssh <host> at the system prompt and press Return.
    Where <host> is the name of the system you want to telnet to. The ssh window appears and waits for you to enter a command.

    See the SSH Secure Shell or Terminal docmentation for more information.

Transferring Files Between Andrew and Other Networks

To transfer files between Andrew and other networks, you&#39;ll need to use a secure FTP client. Some of the network sites you may want to reach via FTP allow for anonymous ftp, which means you can login as anonymous. Other sites, however, may require that you have an account (with its associated user ID and password) on that system.

To start a secure file transfer:

  1. Type sftp hostname at the system prompt and press Return:
    where hostname is the name of the computer to or from which you want to transfer files. SFTP will prompt you (in the Typescript window) for your username and password; supply the appropriate information at the prompts.

To transfer files from other computers to Andrew, i.e. use the get command. To use the get command:

  1. Type get <filename> at the system prompt and press Return.

To transfer files from Andrew to other computers use the put command. To use put:

  1. Type put <filename> at the system prompt and press Return.

    FTP will display messages indicating the status of the transfer. See the help on ftp for more information.

Accessing the Library Information System

To access LIS II from an Andrew workstation and run the Motif user interface:

  1. Type library at the system prompt and press Return.
  • On a DECstation or Sparcstation that is running X windows, the Motif version of LIS II will start and the Search window will be displayed.
  • On an IBM RT, the VT100 version of LIS II will start.

To access LIS II from an Andrew workstation and run the VT100 user interface:

  1. Type library -v at the system prompt and press Return:

    The VT100 version of LIS II will start and the Search window will be displayed. This command will work with DECstation, Sparcstation, or IBM RT system types.

Follow the instructions that appear on the screen to use the Library Information System; see also the help on library for more details.

Last Updated: 8/24/07