1PS C:\> [Environment]::Is64BitProcess 2PS C:\> [Environment]::Is64BitOperatingSystem both will return "True" if you're on a 64 bit Windows. See https://stackoverflow.com/questions/31977657/determining-32-64-bit-in-powershell

1mount -o remount,rw /dev/sda1 /

1PS C:\> $env:COMPUTERNAME See https://blogs.technet.microsoft.com/heyscriptingguy/2015/06/20/powertip-use-powershell-to-get-computer-name/

1PS C:\> Get-FileHash -Path $file -Algorithm MD5 See https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.utility/get-filehash?view=powershell-6

1PS /Users/example> $PSVersionTable 23Name Value 4---- ----- 5PSVersion 7.0.2 6PSEdition Core 7GitCommitId 7.0.2 8OS Darwin 19.5.0 Darwin Kernel Version 19.5.0: Tue May 26 20:41:44 PDT 2020; root:xnu-6153.121.2~2/RELEASE_X86_64 9Platform Unix 10PSCompatibleVersions {1.0, 2.0, 3.0, 4.0…} 11PSRemotingProtocolVersion …

1PS C:\> $env:PATH See https://blogs.technet.microsoft.com/heyscriptingguy/2011/07/23/use-powershell-to-modify-your-environmental-path/

NOTE: CentOS6 is ending support by end of 2020. https://tecadmin.net/install-java-8-on-centos-rhel-and-fedora/

Install 1brew cask install powershell Run 1pwsh To update/upgrade later on: 1brew update 2brew cask upgrade powershell See https://docs.microsoft.com/en-us/powershell/scripting/install/installing-powershell-core-on-macos?view=powershell-7

1chmod g-s <dirname_here> More details in https://serverfault.com/questions/238962/how-do-i-clear-the-s-permission-on-a-directory-in-linux

Is best done manually: 1sudo yum -y update --security 1The problem is that CentOS does not supply the necessary metadata in its yum repositories such that yum-plugin-security can function. In other words, yum-plugin-security does nothing, and the automation of security updates is a lost cause in CentOS. In fact, the …