12-29-2005
Quote:
Originally Posted by fidodido
But vvejendla, you can have multiple ip address depending on the network interfaces you have ? that is, you can have installed two nics on the same server either with different ip addresses, and both are the MACHINE ip addresses. In order to know the "ip address" of the machine, you would need the "interface" name you want to lookup. This is not only on unix, but on every other operating system out there. (am I right?)
SunOS and FreeBSD allow you to run ifconfig without specifying a network interface. The '-a' option can be used to check all interfaces. Of course, to modify anything an interface name is necessary. However, HP-UX requires that an interface name be provided.
Quote:
Originally Posted by vvejendla
both, netstat -in and ipconfig -a show multiple entries on some machines.
One some machnes they just display one entry apart from lo0.
As fidodido said, that depends from system to system. Some systems will have two network interface cards, some will have one. Systems that are setup as high availability clusters have even more (We have HP-UX systems with 4 NICs - one in use, one failover, two for cluster heartbeat).
Any of the IP addresses shown in netstat/ifconfig can be used to access the system as long as that IP is accessible from the rest of the network.
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LEARN ABOUT OPENDARWIN
shell
shell(1F) FMLI Commands shell(1F)
NAME
shell - run a command using shell
SYNOPSIS
shell command [command] ...
DESCRIPTION
The shell function concatenate its arguments, separating each by a space, and passes this string to the shell ($SHELL if set, otherwise
/usr/bin/sh).
EXAMPLES
Example 1: A sample output of shell command.
Since the Form and Menu Language does not directly support background processing, the shell function can be used instead.
`shell "build prog > /dev/null &"`
If you want the user to continue to be able to interact with the application while the background job is running, the output of an exe-
cutable run by shell in the background must be redirected: to a file if you want to save the output, or to /dev/null if you don't want to
save it (or if there is no output), otherwise your application may appear to be hung until the background job finishes processing.
shell can also be used to execute a command that has the same name as an FMLI built-in function.
NOTES
The arguments to shell will be concatenate using spaces, which may or may not do what is expected. The variables set in local environments
will not be expanded by the shell because "local" means "local to the current process."
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Availability |SUNWcsu |
+-----------------------------+-----------------------------+
SEE ALSO
sh(1), attributes(5)
SunOS 5.10 5 Jul 1990 shell(1F)