HP NonStop G-Series - Manual (Page 37)

Reading Tandem Commands From a File
x6530 Run Command and Customizing Options
2–8 082628 Tandem Computers Incorporated
Reading Tandem
Commands From
a File
When the -exec or -dexec command line option is used, x6530 initially looks for
Tandem commands in a file, rather than receiving them from a keyboard. If you press
any key on the keyboard while x6530 is reading the -exec or -dexec file, x6530 stops
processing the file immediately and awaits further input from the keyboard.
The file contains commands in a sense-and-respond format as follows:
sense-string respond-string
sense-string
is one or more characters of a Tandem prompt with no embedded blanks. You do
not need to specify the entire prompt, but only enough characters to identify it.
For example, a
> character is sufficient for the TACL prompt.
respond-string
is the character string to be sent to the Tandem host in response to sense-
string . This string can contain embedded blanks.
The x6530 Emulator processes the lines in a command file sequentially; it compares a
line’s sense string to the prompt received from the Tandem host. When the sense
string matches the Tandem prompt, x6530 sends whatever remains on the command
line to the Tandem host.
Example
Suppose a command file contained the following lines:
Choice> tacl
> logon hardware.engr
Password: engr
> files
When x6530 begins execution, it processes the above command file as follows:
1. The sense string in line 1, Choice> , matches the first prompt received from the
Tandem host, Enter Choice> . The x6530 Emulator sends the Tandem host the
respond string tacl so TACL is ready to receive the next commands.
2. The sense string in line 2, > , matches the TACL prompt sent from the Tandem host
after Step 1. The x6530 Emulator sends the Tandem host the respond string
consisting of a Tandem command (
logon ) and a logon ID ( hardware.engr ).
3. The sense string in line 3, Password:, matches the prompt from the Tandem host
after Step 2. The x6530 Emulator sends the host the respond string engr , the
user’s password. After the password is validated, the user is logged on to the
Tandem host.
4. The sense string in line 4, another > , matches the prompt sent from the Tandem
host after Step 3. The x6530 Emulator returns the respond string files , a TACL