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Full Discussion: ps command
Top Forums UNIX for Dummies Questions & Answers ps command Post 302642775 by muffle on Friday 18th of May 2012 03:47:16 AM
Old 05-18-2012
ps command

What is the difference between ps -ax and ps -x? I got the meaning here but don't understand it clearly.

-a List information about all processes most frequently requested: all those except process group leaders and processes not associated with a terminal.

-x includes processes not attached to terminals

what are proccess group leaders and processes not associated with a terminal? processes not attached to terminals?

Can please someone explain this to me.
 

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HWLOC-PS(1)							       hwloc							       HWLOC-PS(1)

NAME
hwloc-ps - List currently-running processes that are bound. SYNOPSIS
hwloc-ps [options] OPTIONS
-a list all processes, even those that are not bound to any specific part of the machine. -p --physical report OS/physical indexes instead of logical indexes -l --logical report logical indexes instead of physical/OS indexes (default) -c --cpuset show process bindings as cpusets instead of objects. --whole-system Do not consider administration limitations. DESCRIPTION
By default, hwloc-ps lists only those currently-running processes that are bound; it displays their their identifier, command-line and binding. The binding may be reported as objects or cpusets. By default, process bindings are restricted to the currently available topol- ogy. If some processes are bound to processors that are not available to the current process, they are ignored unless --whole-system is given. The output is a plain list. If you wish to annotate the hierarchical topology with processes so as to see how they are actual dis- tributed on the machine, you might want to use lstopo --ps instead (which also only shows processes that are bound). The -a switch can be used to show all processes, if desired. SEE ALSO
hwloc(7), lstopo(1), hwloc-calc(1), hwloc-distrib(1) 1.4.1 Feb 27, 2012 HWLOC-PS(1)
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