linux command to show processes

I have Ubuntu linux installed. I have no problem in using Linux when it is the Graphical User Interface. I'm quite weak with commands. I want to know which command shows the process manager like the windows task manager. Or any other some related command would help too. Thanks!:biggrin:

To see currently running process use the command :

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ps

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To get information about all running process use the command :

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ps -ag

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To stop any process by PID i.e. to kill process :

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kill (PID)

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Example :

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kill  1012

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To stop processes by name i.e. to kill process :

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killall (Process-name)

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Example :

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killall httpd

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To stop all process except your shell :

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kill 0

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To display the owner of the processes along with the processes :

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ps aux

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To display a tree of processes :

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pstree

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