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Windows Command Prompt

How to open a command prompt in any folder?​

Just type cmd in the address bar of the explorer:

cmd

If you hold down the Shift key and right-click anywhere, you will be able to launch PowerShell:

PowerShell

How to set environment variable? (for session only)​

set VAR_NAME=VALUE

How to get the hostname of the current machine?​

hostname
Syntax
mklink LINK_PATH TARGET_PATH
Example
mklink  "C:\Program Files\nodejs" "C:\nvm\v18.16.0"

How to view the current DNS cache?​

View cache
ipconfig /displaydns
Clear cache
ipconfig /flushdns

How to find all substrings in command output?​

dir | findstr git

How to launch the event log?​

eventvwr

How to check for a specific port?​

netstat -na | find "8080"

How to restart a service?​

net stop nginx && net start nginx