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The ppid field is the parent's process id. This is the process that 'owns' the current process.
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What are some of the options available in UNIX command PS?
The 'ps' command may differ slightly in different versions of unix operating systems. It is usually better to use the 'man ps' command or the 'info ps' command to see the options that are available for your distribution.
What command lists processes started by jtaylor?
Use the command: ps -u jtaylor
What is pid and ppid?
Process ID and Parent Process ID
What is the Unix command to get the name of a process?
Use the 'PS' (process status) command to find out the name of the executable file for a process. If you use the long form and you know the process id, try: PS -p process-id -l or PS -p process-id -f
What command can you use to list services that are running?
Linux OS is : PS -ef
Running processes on a Linux system can be reported using which command?
ps aux
Unix command to identify defunct processes?
PS -eaf|grep defunct
Why does not unix use 0 as a valid process identifier?
0 is used as a Valid Process identifier. It is used as the PPID for /etc/init that starts everything on the server. The PPID Is the Parent Process Identifier. The Parent Process is Process 0, or the System Startup Process. All processes spawn from this PPID. PID 1 is /etc/init which starts up everything else.
What are Significant switches that can be used with the PS command?
It depends on what information you are looking for, and the exact Unix system you are using. Take a look at the 'man ps' command on your system to find out the switches that give the information you are most interested in looking at.
Which utility displays the PID number of the commands your are running?
Both the ps command and the jobs command will do this, though in somewhat different ways.
How do you see what is active on a UNIX machine?
Use the 'ps' command. This command lists all of the processes running on the system, when they started, who the owner is, etc.
What command displays the mappings between different layers of the network architecture?
ps or /proc
