Windows

Windows is a group of several proprietary graphical operating system families developed and marketed by Microsoft.

Index

• Shell
• File System

Shell

Redirect stdout to a file.

command > out

Redirect stderr to a file.

command 2> error

Redirect stdout to a file and stderr to stdout.

command > out 2> &1

Redirect to NUL.

command > nul
command 2> nul

Command	Description
cd	Change directory.
cls clear	Clear the console.
dir ls	List files and directories.
dir env: ls env:	List the environment variables.
set	Set an environment variable.
scp -r file user@ip:path	Secure copy files or directories between 2 computers.
systeminfo	Displays detailed configuration information about the computer and operating system.
$env:name="value"	Set an environment variable.

PowerShell script ps1 cannot be loaded because running scripts is disabled on this system.

• Run PowerShell as administrator by clicking "Run as Administrator".
• Get the current execution policy with the command Get-ExecutionPolicy, the value would be Restricted.
• Set the execution policy with the command Set-ExecutionPolicy RemoteSigned and type "Y".

PowerShell redirect stdin and stdout.

Get-Content input.txt | program.exe > output.txt
Start-Process "program.exe" -RedirectStandardInput "input.txt" -RedirectStandardOutput "output.txt" -NoNewWindow -Wait

File System

Hosts file maps human-friendly hostnames to numerical Internet Protocol (IP) addresses.

C:\Windows\System32\Drivers\etc\hosts