Powershell can be downloaded by Microsoft, for example available in rpm package

https://learn.microsoft.com/fr-fr/powershell/scripting/install/installing-powershell-on-linux

Download Powershell from github

https://github.com/PowerShell/PowerShell/
https://github.com/PowerShell/PowerShell/releases/download/v7.2.4/powershell-7.2.4-1.rh.x86_64.rpm

Or Microsoft

https://packages.microsoft.com/rhel/7.3/prod/Packages/p/

[root@rhel8] ~ # rpm -Uhv /work/powershell-7.2.4-1.rh.x86_64.rpm

[root@rhel8] ~ # pwsh
PowerShell 7.2.4
Copyright (c) Microsoft Corporation.

https://aka.ms/powershell
Type 'help' to get help.

PS /root>

Install module PowerCLI : https://developer.vmware.com/powercli/installation-guide

Check module folders:

PS /work> $env:PSModulePath
/root/.local/share/powershell/Modules:/usr/local/share/powershell/Modules:/opt/microsoft/powershell/7/Modules
PS /work> ls /root/.local/share/powershell/Modules
PS /work> ls /usr/local/share/powershell/Modules
/bin/ls: cannot access /usr/local/share/powershell/Modules: No such file or directory
PS /work> ls /opt/microsoft/powershell/7/Modules
Microsoft.PowerShell.Archive  Microsoft.PowerShell.Management  Microsoft.PowerShell.Utility  PowerShellGet                PSReadLine
Microsoft.PowerShell.Host     Microsoft.PowerShell.Security    PackageManagement             PSDesiredStateConfiguration  ThreadJob

We 'll extract the downloaded module from VMware web site: VMware-PowerCLI-12.4.1-18769701.zip into the folder /opt/microsoft/powershell/7/Modules (offline install)

[root@rhel8] /opt/microsoft/powershell/7/Modules # unzip /home/cyberark/VMware-PowerCLI-12.4.1-18769701.zip
Archive:  /home/cyberark/VMware-PowerCLI-12.4.1-18769701.zip
warning:  /home/cyberark/VMware-PowerCLI-12.4.1-18769701.zip appears to use backslashes as path separators
  inflating: VMware.CloudServices/EULA.rtf
  inflating: VMware.CloudServices/VMware.CloudServices.cat
  inflating: VMware.CloudServices/VMware.CloudServices.psd1
  inflating: VMware.CloudServices/VMware.CloudServices.psm1
  inflating: VMware.CloudServices/net45/ComponentDescriptor-VMware.CloudServices.Commands.xml
  inflating: VMware.CloudServices/net45/ComponentDescriptor-VMware.CloudServices.Impl.xml

Once the modules extracted

PS /work> Get-Module

ModuleType Version    PreRelease Name                                ExportedCommands
---------- -------    ---------- ----                                ----------------
Manifest   7.0.0.0               Microsoft.PowerShell.Management     {Add-Content, Clear-Content, Clear-Item, Clear-ItemProperty…}
Manifest   7.0.0.0               Microsoft.PowerShell.Utility        {Add-Member, Add-Type, Clear-Variable, Compare-Object…}
Script     2.1.0                 PSReadLine                          {Get-PSReadLineKeyHandler, Get-PSReadLineOption, Remove-PSReadLineKeyHandler, Set-PSReadLineKeyHandler…}

PS /work> Get-Module -ListAvailable

    Directory: /opt/microsoft/powershell/7/Modules

ModuleType Version    PreRelease Name                                PSEdition ExportedCommands
---------- -------    ---------- ----                                --------- ----------------
Manifest   1.2.5                 Microsoft.PowerShell.Archive        Desk      {Compress-Archive, Expand-Archive}
Manifest   7.0.0.0               Microsoft.PowerShell.Host           Core      {Start-Transcript, Stop-Transcript}
Manifest   7.0.0.0               Microsoft.PowerShell.Management     Core      {Add-Content, Clear-Content, Clear-ItemProperty, Join-Path…}
Manifest   7.0.0.0               Microsoft.PowerShell.Security       Core      {Get-Credential, Get-ExecutionPolicy, Set-ExecutionPolicy, ConvertFrom-SecureString…}
Manifest   7.0.0.0               Microsoft.PowerShell.Utility        Core      {Export-Alias, Get-Alias, Import-Alias, New-Alias…}
Script     1.4.7                 PackageManagement                   Desk      {Find-Package, Get-Package, Get-PackageProvider, Get-PackageSource…}
Script     2.2.5                 PowerShellGet                       Desk      {Find-Command, Find-DSCResource, Find-Module, Find-RoleCapability…}
Script     2.1.0                 PSReadLine                          Desk      {Get-PSReadLineKeyHandler, Set-PSReadLineKeyHandler, Remove-PSReadLineKeyHandler, Get-PSReadLineOption…}
Binary     2.0.3                 ThreadJob                           Desk      Start-ThreadJob
Script     12.4.0.18…            VMware.CloudServices                Desk      {Connect-Vcs, Disconnect-Vcs, Get-VcsOrganizationRole, Get-VcsService…}
Script     7.0.2.178…            VMware.DeployAutomation             Desk      {Add-CustomCertificate, Add-DeployRule, Add-ProxyServer, Add-ScriptBundle…}
Script     7.0.2.178…            VMware.ImageBuilder                 Desk      {Add-EsxSoftwareDepot, Add-EsxSoftwarePackage, Compare-EsxImageProfile, Export-EsxImageProfile…}
Manifest   12.4.1.18…            VMware.PowerCLI                     Desk
Script     12.4.1.18…            VMware.PowerCLI.Sdk                 Core,Desk
Script     12.4.1.18…            VMware.PowerCLI.Sdk.Types           Core,Desk
Script     12.4.1.18…            VMware.PowerCLI.VCenter             Core,Desk {Get-VIMachineCertificate, Get-VITrustedCertificate, Remove-VITrustedCertificate, New-VIMachineCertificateSigningRequ…
Script     12.4.1.18…            VMware.PowerCLI.VCenter.Types.Cert… Core,Desk
...

PS /opt/microsoft/powershell/7/Modules> Get-Module -Name VMware.PowerCLI -ListAvailable

    Directory: /opt/microsoft/powershell/7/Modules

ModuleType Version    PreRelease Name                                PSEdition ExportedCommands
---------- -------    ---------- ----                                --------- ----------------
Manifest   12.4.1.18…            VMware.PowerCLI                     Desk

If you want installing modules using an internet connection:

Execute the below command to install VMware PowerCLI module (requires internet connection)

[root@linux]/root # /usr/bin/pwsh
PS /root> Install-Module -Name VMware.PowerCLI

Check PowerShell module PATH

PS /root> $env:PSModulePath

Execute the below command update a module (requires internet connection)

PS /root> Update-Module -Name VMware.PowerCLI