#command shell

What is command prompt?

Command prompt is a terminal. A terminal is a text based process that allows commands. In this case command prompt is Windows’s terminal. Command prompt is often referred to as; cmd, windows command processor or even command shell. 

Q: is CMD MS-DOS? A: No. However, it does include many of the commands that MS-DOS has

What is CMD used for?

CMD is used for many practices and can be used for the average day use. CMD is the not GUI alternative for your systems needs. With CMD you can do many more things windows can’t. CMD can be a massive time saver with its many commands. As anything to do with intermediate computer knowledge it will have rules, in this case we have syntax. CMD’s syntax is as easy as HTML! Wondering what CMD can do? Here are the things CMD is commonly used for:

Networking (Ipconfig, netstat, ping, ect)

File directories (mkdir, dir, cd)

Handy hardware info (system information, format, chkdsk, tree)

other (color, title,) 

Where can CMD be found?

CMD can be found on all windows operating systems. This will include the popular; Windows Vista, Windows XP, Windows 7, Windows 8, Windows 10.

When using these operating systems all you have to do is press the following:

Windows key - type CMD or command prompt - click it

Some commands require administrator. To get these to work do the following:

windows key - type CMD or command prompt - right click it - click run as administrator

Q: What if im not running Windows? A: Well there are command shells in other operating systems. For instance:

 Linux’s CMD can be found by using CNTRL + ALT + T

MacOS’s CMD can be found by opening applications - utilities - terminal 

Fun commands!

For these exercises we will be using windows’s CMD. So to get you started lets do some fun things in CMD. Make sure to have CMD open. Try these following commands!

color a (This will make your text turn green. Using numbers and letters will change the text and background of CMD)

time 12:00:00.00 (this will allow you to change the time to the millisecond)

title The console (this will allow you to change the title 

cls (This will clear the command prompt)

tree c: (This will show a diagram of your file directories in your C drive)

Useful commands!

These are the ease of life commands, the cream of the crop. With these it can reduce your time performing functions in windows.

dir (this will show your whole file directory. This includes the files in them. Try dir a* or dir *.ini. For file extensions the * comes first but for regular names the * comes last

tasklist (this shows the concurrent running programs)

taskkill /IM (this will force shutdown any process put after taskkill. Be careful with this one)

shutdown (this will either turn off your system or restart it or log it off. There are also other functions. -s is shutdown, -l is logoff, -r is restart, -t is timer, -hybrid prepares a fast bootup for the next time the system is turned on, -a stops a shutdown function, -sg is to shutdown but restart the applications upon next boot, /c is the comment. Try shutdown -s -t 999 /c “Will turn off in 999 seconds”)

Making a .bat/.cmd file

For this you will need notepad open. Now you have it open copy or write the following 

Making a rainbow

@echo off

echo this will make a rainbow

:rainbow

color 01

echo Rainbow!

color 02

echo Rainbow!

color 03   

echo Rainbow!

color 04   

goto rainbow

Now save the file. Do the following Click save as - click save as type - click all files - save the file as rainbow.bat or rainbow.cmd

Now double click what you just saved EPILEPSY WARNING

Rainbow explained 

@Echo off hides the code but allows the result to be shown

echo is a print statement 

:rainbow is just a random name, The name doesn’t have to be rainbow, it can be anything as long as there’s a : behind it. This is basically a checkpoint for code 

color 01 changes the text colour

goto rainbow makes the computer say okay im going to start the code back from where rainbow is

Making a prank (shutdown)

Remember how we talked about shutting down? Well what if you was to make a .bat/cmd file for a prank. Let’s make a script that shuts somebody’s computer down, but only after we have talked to them first!

@echo off

echo Your computer will turn off in 30 seconds

Pause

echo Have fun!

Pause

shutdown -s -t 30 

Now save the file. Do the following Click save as - click save as type - click all files - save the file as down.bat or down.cmd

Now double click what you just saved (if you want to open cmd again and type shutdown -a to avoid your PC shutting down)

Making a prank explained 

@Echo off hides the code but allows the result to be shown

echo is a print statement

Pause makes the user press a button for the next line of code to execute

shutdown is the function to make the computer do a shutdown function -s if for turning the computer off -t is the timer 

When you shutdown as a test but forget to cancel

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