Present the content of manipulating of some command (including syntax, what does it for?, capture two of examples for each command) pstree -np pstree command in Linux that shows the running processes as a tree which is a more convenient way to display the processes hierarchy and makes the output more visually appealing. Syntax: pstree [options] [pid or username] Example 1: Example 2: Pstree -np: Display process identifier or PID and sort processes by PID instead of name with flag. Pkill pkill is a command-line utility that sends signals to the processes of a running program based on given criteria. Syntax: pkill [options] <pattern> Example 1: Example 2: Uptime Uptime is used to find out how long the system is active (running). Syntax: uptime [-options] Example 1: Example 2: Free free command displays the total amount of free space available along with the amount of memory used and swap memory in the system, and also the buffers used by the kernel. Syntax: free [OPTION] Example 1: Example 2: Capture the terminal screen using the “pgrep –u root” command. Explain the result of the capture Function: Show all processes related to root user (most powerful user). How to open same “Task Manager” as Windows in Linux that shows the processes tab? Capture that windows (using both command and GUI on taskbar). By command: By GUI: How to open same “Add/Remove Program” as Windows in Linux that allows to update or remove the package software to OS? Capture that window. Click Activities -> click Software Access the Software icon on the taskbar and type the name of any apps on search bar that you want to get it. To get the app you want, click on the Install of the chosen app. To Remove we click on the Unistall one of the Software we want to delete Update By terminal: