[Environment]::SetEnvironmentVariable("JAVA_HOME", "C:\Program Files\Java\jdk-13.0.2+8")
Microsoft PowerShell environment variable documentation
PowerShell – File Hash
Many online file downloads have a checksum in the form of a ‘hash’ code, allowing you to verify the file integrity. This can be useful when downloaded via a 3rd party mirror or to see if a file is corrupted.
There is a handy PowerShell command for this: Get-FileHash
The -Algorithm parameter allows you to get the hash for different algorithms. Use <tab> to cycle through the available options.
Taking a LibreOffice mirror download as an example.
- Filename: LibreOffice_6.4.5_Win_x64.msi
- SHA-256 Hash: 3d80c1d8f3bf4540a6b845d43e54d3e6940058a9b2e5456234ac0fa39527ebcf
- SHA-1 Hash: 727e65bfbd50d8a6953687398c62ad8e688256e1
- MD5 Hash: fa9c89d871b1e8d520ae2d488bdbf87d
