cmd.exe interview questions
Top cmd.exe frequently asked interview questions
Is there a way to essentially mute the Beeping function of the Windows command shell?
I'm working on a PowerShell script right now which ends up printing several lines of text to the screen. I'm working out a bug in the encoding logic. But every time I'm wrong my script will spew a bunch of random binary characters to the screen and eventually cause many annoying beeps.
The failure is quite obvious without the beeps :)
Source: (StackOverflow)
Is it possible to set Internet Explorer as the default browser to launch from the command line?
I have a web application that only runs under Internet Explorer, but if it happens that Firefox is the default browser, it doesn't work. Users are in a domain environment and even though I try to launch our application from a batch in this way:
start "C:\Program Files\Internet Explorer\iexplore.exe" http://server_ip/home_page
the application doesn't start unless I change the browser manually.
Source: (StackOverflow)
Is there a command prompt grep equivalent for Windows 7? That is, I want to filter out the results of a command:
Bash use:
ls | grep root
What would it be from a Windows command prompt?
Source: (StackOverflow)
When I typed %^
in cmd and pressed Enter, and it said:
More?
When I pressed Enter again, it gave the same response.
Is this an Easter Egg? What is this?
Source: (StackOverflow)
This question already has an answer here:
When I'm working in a folder in Windows Explorer, sometimes I have a need to run some CMD command in this folder.
How do I open the command line from a current folder, so the console opens in the current directory?
Example:
I work in D:\Apps\Test
. I would like to have a possibility to open a command prompt with the same context (meaning: D:\Apps\Test
), so I don't have to navigate to this folder again within a console, ie. so it opens cd
'd to the current location.
EDIT:
The solutions from this topic do not work for me, what's why I asked a separate question.
Source: (StackOverflow)
How can I copy a file using DOS commands into a directory structure that may not yet exist? I need to be able to force the creation of the directory path to the target file location if that location doesn't already exist.
For example, there is already a file.txt in this location:
C:\file.txt
And I want to copy it to
C:\example\new\path\to\copy\of\file\file.txt
but at this time
C:\example\
and all the subdirectories may or may not yet exist.
Basically, I am looking for a "copy and create the target path if necessary" command. What would you recommend is the best way to achieve this?
Source: (StackOverflow)
This question already has an answer here:
When I use the Ping command against my localhost (on Windows Vista), it doesn't show up as 127.0.0.1.
C:\Windows\system32>ping localhost
Pinging GIGA [::1] from ::1 with 32 bytes of data:
Instead, it shows up as ::1
(pair of colons and a one). What kind of notation is this? And why is it not showing up as 127.0.0.1?
Here's what I see in the c:\windows\system32\drivers\etc\hosts
file.
::1 localhost
127.0.0.1 localhost
As suggested by Gregg I have already tried changing this order.
127.0.0.1 localhost
::1 localhost
The expected result is that 127.0.0.1
would take precedence over ::1
but that was not the case.
As I have learned now, this can be done by adding a prefix policy instead. To force cmd to use IP version 4 the option -4
can be used. To force Windows to always use IP version 4, IP version 6 or some of its components can be disabled through the properties dialog for the network adapter or through a registry tweak.
Source: (StackOverflow)
Using netstat -a -o -n
I can get the list of ports and PID
then I need to go to task manager and add the PID and see who is it.
(pretty frustrating)
I was wonder if there is a CMD command which does it all ( using find
, for
, powershell
)
so that I could get the process name
Source: (StackOverflow)
I'm trying to run an iteration program, and whenever I click on it, it opens then terminates. When I open the input text file, using the program, the iteration completes, then the window instantly closes. How can I either run it so that the window does not close (and I can see my results), or manage to do the same thing in command prompt. I'm not super familiar with doing stuff in command prompt.
Source: (StackOverflow)
When you launch shutdown -i
to shutdown a computer from the command prompt (CMD), does it damage the computer that is being turned off (either local or remote)?
Source: (StackOverflow)
I know what >>
is used for, it write all messages into a file instead of screen. And I guess <<
do reverse, I try it and receive a message: << was unexpected at this time.
Please tell me what is <<
used for and how to use.
Source: (StackOverflow)
This question already has an answer here:
I recently needed some of the really useful nirsoft tools. Many are command line tools and they need a location in the path to run from. I dumped them somewhere to get things done but I want to know if there is an official place in the file system for these tools.
I do not think they should be directly in "Program Files" nor do I like the proliferation of application specific locations because they bloat the path environment variable. Its hard enough to read as it is.
I am considering a top level "bin" directory or "tools" but I fear it might offend some MS rule.
suggestions?
Source: (StackOverflow)
I have a folder:
C:\users\julio\desktop\testfolder
I am learning to use Command Prompt and I am having trouble moving a file from testfolder
to Desktop
. I first moved the file to testfolder and it worked fine. then I tried moving back to the Desktop from testfolder using the following code:
move testfile.txt desktop
When I do this the results end up being the file inside testfolder named testfile
being renamed to desktop
. No matter what I do this keeps happening and it only happens when I try to move it back to desktop. Any ideas?
Source: (StackOverflow)