Novell LINUX ENTERPRISE SERVER 10 SP2 - INSTALLATION AND ADMINISTRATION Installation Manual page 392

ps [options] [process ID]
If run without any options, this command displays a table of all your own programs
or processes—those you started. The options for this command are not preceded
by hyphen.
aux
kill [options] process ID
Unfortunately, sometimes a program cannot be terminated in the normal way. In
most cases, you should still be able to stop such a runaway program by executing
the kill command, specifying the respective process ID (see top and ps). kill
sends a TERM signal that instructs the program to shut itself down. If this does not
help, the following parameter can be used:
-9
killall [options] processname
This command is similar to kill, but uses the process name (instead of the process
ID) as an argument, killing all processes with that name.
Network
ping [options] hostname or IP address
The ping command is the standard tool for testing the basic functionality of TCP/IP
networks. It sends a small data packet to the destination host, requesting an imme-
diate reply. If this works, ping displays a message to that effect, which indicates
that the network link is basically functioning.
-c number
-f
374 Installation and Administration
Displays a detailed list of all processes, independent of the owner
Sends a KILL signal instead of a TERM signal, bringing the specified process
to an end in almost all cases
Determines the total number of packages to send and ends after they have been
dispatched (by default, there is no limitation set)
flood ping: sends as many data packages as possible; a popular means, reserved
for root, to test networks