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Empty log or replace large files

Log files can easily occupy the space of a drive.

If the log files is collecting or monitoring multiple system then chances are it will grow in size very quickly.

If it the log file is in a text format, even if it comes in Giga or Tera bytes size it can be emptied very quickly in a command line.

If the log files has been analyzed or not in use anymore, then it is a good candidate to get rid of it rather than occupy the space of a drive for nothing.

To empty a log file or a text file:

In Windows open command prompt and type:

echo "First Line" > Packets_2018.log

The log file will be replace with the word "First Line" and only a few bytes in size. Whatever was the content before on that log file is ditch away. So, be careful in emptying a file it's not reversible,

In Linux open Terminal and type:

echo "Line 1" > Packet_logstash.log

Till next time..Cheers!

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Add multiple drivers to a WinPE image

How to add multiple inf drivers to a Windows PE Image?

To add a single driver to a Windows PE Image  is quite straight forward but adding multiple drivers  one by one is not ideal or else it will take a definite amount of time.

Dism command provides an option to add a single driver or add multiple drivers.


To add a single driver or multiple drivers, the first thing to do is to mount the image for editing.

Dism /Mount-Image /ImageFile:"C:\WinPE_amd64\sources\boot.wim" /index:1 /MountDir:"C:\WinPE_amd64\mount"

C:\WinPE_amd64\media\sources\boot.wim -  is the image where the new drivers will be added

C:\WinPE_amd64\mount - this directory will contain the extracted files of wim images, the folder must be created if it doesn't exist

Once the image has been mounted, to add a single driver type the command below:

Dism /Add-Driver /Image:"C:\WinPE_amd64\mount" /Driver:"C:\Folder_Driver\driver.inf"

C:\WinPE_amd64\mount - the folder in which the mount i…

Move folders in command line with specific string

How to move folders in command line without selecting manually the folders?
Manually moving folders is quite ideal if there are two or three folders that needs to be moved. But if the folders are quite a lot and doing it manually is a bit tedious; besides chances are there might be folders that will be missed out.
Command lines and some basic editing in notepad can ease the process of moving folders it can be run via batch file or just simply enter the command at the command prompt window.
Assume that all folders have the word “old-data” as part of its folder name. It can be any string as long as it’s common to all the folders that needs to be moved or archived.
First step, is to open a command prompt window then change directory to the folders.
Example: c:\cd sales_data
Then at sales_data directory type:
dir *old-data* /s/b > file_old_data.txt
replace old-data with any string that is common to all folders.
* is used between the string, which basically means that look for folders with this …

Check if 32 bit or 64 bit processor from command line

How to check processor architecture whether its 32bit or 64bit?
One method is to query the registry from the command line.
Here’s a one liner command line that will check whether the PC processor is 32bit or 64bit.
reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" | find “ARCHITECTURE”
If the output is something like this:
PROCESSOR_ARCHITECTUREREG_SZAMD64

Then it’s a 64bit, if it shows x86 then it’s a 32 bit.
reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment" | find “IDENTIFIER”
Above query can also identify, the output shows Intel64 for 64bit.
Sample Output: PROCESSOR_IDENTIFIERREG_SZIntel64 Family 6 Model 142 Stepping 10, GenuineIntel

Omitting the find option from the “reg query” command will show quite a few information.
reg query "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Environment"
This query command works in Windows 7, Windows 8 and Windows 10. I believe this will also work in Windows s…

How to open an elevated command prompt from a standard account?

Working in a fast pace environment, will need to get things done quickly to do other tasks that needs to be done also.
Opening a command prompt in a standard user account without signing off and without logging off is possible with the “runas” utility command in Windows environment.
Open the run box and type “cmd”, to open the command prompt window.
Then type:
Runas /user:admin_account cmd
It will ask for a password, if authentication is valid then a new command prompt window will open in an elevated mode. Command works from Windows 7+  version.
That’s it, you just open an elevated command prompt window in a user standard account. Since most users are hungry with the admin password, just watch out with the shoulder sniffing tactic.

Other useful admin commands in a windows environment:
If ever you have a custom local admin account name and you can’t remember, type: net users
It will display all the local user accounts.
To check domain name and current login user account name, type:
Who…

Ping IPv4 or IPv6 in Windows 10

Windows 7 and newer releases of Windows supports ping results of either IPv4 or IPv6.

If the remote PC or server is configured for both IPv4 and IPv6, and if you need to ping via hostname and you want to get an IPv4 address type the command below:

ping -4 -n 2 Dhoney_Srv

Output will be IPv4 address of the hostname

ping -6 -n 2 Dhoney_Srv

Output will be IPv6 address of the hostname.

-n 2 send two ICMP packet requests.


Cheers! Till next time.


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Activate Windows from command line

How to activate Windows from command line?
If you have decided to convert an evaluation Windows server (Windows 2016 or other server version), or Windows 10 to a license Operating system then you need to replace the product key. You will need to change the product key and activate the system, in order to use the product outside of its evaluation period.
Assuming you have done the steps of converting the evaluation software and all the evaluation packages has been removed. Of course, if you have plenty of time in your hands and you just want to redo everything then you can just install or setup a new environment.
To activate a new product key from command line, first the product key must be installed and replaced the existing one. Second, activate the product key.
Here’s how to do it via command line:
a. slmgr /ipk windows-product-key-with-slashes
/ipk = installed product key windows-product-key-with-slashes – replace this with the actual windows product key
If everything goes well there will b…

How to print files without opening

How to print multiple files with opening them?

How to print multiple PDF files in one go?

Printing is an easy and straight forward task, but if you need to print a 100 or more files but time is a constraint then you have to think twice how to do it fast and easy.

Of course, open, click and print is the usual method of printing.

To print multiple files without opening them in Windows, just go to devices and printers.

Double click the printer and it will open a printer task window which shows what files are being printed.

In Windows 7 if you right click the printer name, click on "See What's Printing".

If you need to print in double side the printer has to be set before printing because it will just print automatically with the default settings.

This method works well for a Fuji Xerox printer, but it should also work with other brand of printer.

See screen shot below:



Cheers! Hope it helps to make things faster.

Till next time...


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Add a user in command line in Windows and Linux

How to add a user via command line in Windows and Linux?

Adding a user whether in Linux or Windows requires the user have rights to create.

In Windows you must be a member of the administrator or other groups who has the rights to create a user.

In Linux you must be a root or either a member of the sudoers depending on what distro you are using.

In Windows to create  a local user in a Windows client operating system such as Windows 7 or Windows 10.

A one liner command can be issued to create a local user, using the command prompt Window at an elevated mode or administrator mode.

At the command prompt type:

Net user  "username" "password" /add

Net user  << this should be type like that it’s part of the command syntax while username and password, can be any data and of course /add is needed meaning the command is adding a user to the system.

Example: net user spiderbond 007-homeSp!dey /add

Command will add a user name called spiderbond and the password is 007-…

Access denied renaming shared folder

If you are working in a shared active directory environment and has a shared folder that needs to be renamed once in a while.
But every time you want to rename there is always a user who is using the folder and therefore, renaming the folder is denied.
How to rename the folder when the shared folder is always in use?
Automation will come for the rescue in such a scenario.
How to automate renaming the folder?
Task scheduler and a simple batch file can do the task and a life saver.
Here's how to do it:
Of course, disconnect all the open files. Users should shutdown their computers when they went out of the office,
If they don't shutdown, force their disconnection by using the command below:
openfiles /disconnect /o read/write openfiles /disconnect /o no access
Then, rename the folder with the ren or rename command of course.
Syntax is the good old fashioned source folder or path and the new folder name.
If the batch file will be run directly on the server, then the drive letter w…