Answers to Questions 1-7 O-P-M
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In this lecture we’re going to review the questions and answers from the Objects, Properties and Methods section.
- Q: What are objects?
- Answer:
Objects are things that we can interact with. For example: Like a boat or a car. Technically an object is the programmatic representation of anything. For example, an object is a cmdlet like get-eventlog or get-service .
- Q: What two components do objects have?
- Answer:
Properties and Methods
Properties describe features
Methods describe actions or things that we can do with the object.
- Q: In our car example describe one of the properties or features of the car
- Answer:
Headlights
- Q: In our car example describe one of methods or actions (Things that you can do with one of the properties or features of the car.
- Answer:
Turn on the headlights
- Q: How can you display the property or methods of a command?
- Answer:
By using the get-member command
- Q: Using methods, how would you kill an instance of Internet Explorer?
- Answer:
First open Internet Explorer and minimize to the taskbar.
Now we want to determine first is Internet Explorer a service or a process
Type get-service -name (now scroll down though the list) List is in alphabetical order) We see that IE is not in the list.
- Type get-process -name (scroll down through the list) and we see iexplore
- So now we know that iexplore is a process
Now we’ll use get-member to find our method
Type get-process | gm press return
Scroll up until you see a method,that could kill a process. And we see we have kill.
I’ll go ahead and type the command then explain what I did.
Type (get-process iexplore).kill()
- If you want to use the method of an object. Use GM and choose the method.
- In this case we surrounded the command (get-process) and the process called iexplore in parenthesis
- then used a dot then the method (which was kill) followed by open and closed parenthesis
Go ahead and press return, and we’ll see if IE closes
And we see that command worked.
- Q: Using methods of an object, how would you copy the contents of a file called servers.csv from, a folder called copyA to a folder called copyB.
- Answer:First open windows explorer and create the two folders called copyA and copyB. Close explorer
- Open notepad and type the following text
DNS Servers (return)
DNS1
DNS2
Domain Controllers
AD1
AD2
AD3
- Click file save as, save as type, click the down arrow and click all files.
Now for a filename type servers.csv and save this file to the copyA folder.
Close notepad, go back out to explorer and double check to be sure our file is there. and go to c:\copya and there’s our file.
- So, the question was, we want to copy the contents of the servers.csv file from the copyA folder to the copyB folder.
So, the first question you should have, is how are you going to figure out which commands to use? I’m glad you asked
- When you began the lecture there was an additional resource that you should have downloaded called Technet PowerShell Commands and aliases.
- Go ahead and open this file. Notice there are a whole list of cmdlets with descriptions and aliases.
Let’s Scroll down and find a command in the list that we think that will work.
So, in this case we’ll use get-childitem, and the description says that the command gets the files and folders in a file system drive.
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