# ps -fu user
where user is the owner of the process.
The process ID is displayed in the first column of the output.
# kill [signal-number] PID
When no signal is included in the kill command-line syntax, the default signal that is used is -15 (SIGKILL). Using the -9 signal (SIGTERM) with the kill command ensures that the process terminates promptly. However, the -9 signal should not be used to kill certain processes such as a database process or an LDAP server process because data might be lost.
The process ID of the process that you want to terminate.
# ps -ef | grep PID
The process you terminated should not be listed.