Actually you are trying to perform command of ubuntu/mac on windows.
If you want to install NVM in windows then please refer this step by step guide.
Step by step guide
NVM For Windows
Answer from Dakshesh Baldaniya on Stack OverflowHow to install nvm in windows - Stack Overflow
Should i use nvm-windows
The next generation node version manager
Node Version Manager
Videos
I only recently started using nodejs. I installed it with an installer which i probably shouldn’t do and use version manager instead. Idk yet if i will work on different versions until the point i will do fresh windows install (in 2 months). If i don’t really need to switch node versions (idk yet) can i stay with my current installation? Which version manager should i use (nvm-windows seems to be recommended)? Is just running uninstaller enough to clean thing up enough for version manager or should i do manual cleanup or 3rdparty uninstaller(like revo), and if needed what folders should i delete. Also should i use LTS or latest in most cases(assuming i don’t really need newer features).
OS: windows 10 and i will move to windows 11 in few months