Background

Back playing around with a Linux box and wanted to see if it is any easier for me to understand the steps for installing Powershell.

Outline

1. Configure Source Repositories
   • Review available Microsoft Repository for your OS/Version ( https://packages.microsoft.com/config/rhel/ )
2. Redhat Repository – Local
   • Review “Local” Redhat Repository
     • Is Microsoft repository registered?
   • If Microsoft Repository is not registered, please register it
     • Locally, Register Microsoft Repository
3. Install Powershell

Tasks

Configure Source Repositories

Review available Microsoft Repository for OS/Version

Listing

1. packages
   • https://packages.microsoft.com/
     Link
2. Redhat
   • version
     • Version 8
       Link
3. Prod Repo
   • Prod Repo
     Link

Images

packages.microsoft.com

packages.microsoft.com.config.rhel.8

packages.microsoft.com.config.rhel.8/prod.repo

Register Microsoft Repository – Local

curl/tee

Syntax

curl [url-repo] | sudo tee /etc/yum.repos.d/[filename]

Sample

curl https://packages.microsoft.com/config/rhel/7/prod.repo | sudo tee /etc/yum.repos.d/microsoft.repo

Output

Output – Image

Output – Text

>curl https://packages.microsoft.com/config/rhel/7/prod.repo | sudo tee /etc/yum.repos.d/microsoft.repo                                                                   % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100   193  100   193    0     0   1707      0 --:--:-- --:--:-- --:--:--  1707[sudo] password for dadeniji:

[packages-microsoft-com-prod]
name=packages-microsoft-com-prod
baseurl=https://packages.microsoft.com/rhel/7/prod/
enabled=1
gpgcheck=1
gpgkey=https://packages.microsoft.com/keys/microsoft.asc
>

Explanation

1. Downloaded and Saved Microsoft Repository

Review Locally Registered Repository

grep

Syntax

grep -i [pattern] [file]

Sample

grep -i 'microsoft' /etc/yum.repos.d/*.repo

Output

Output – Image

Output – Text

>grep -i 'microsoft' /etc/yum.repos.d/*.repo
/etc/yum.repos.d/microsoft.repo:[packages-microsoft-com-prod]
/etc/yum.repos.d/microsoft.repo:name=packages-microsoft-com-prod
/etc/yum.repos.d/microsoft.repo:baseurl=https://packages.microsoft.com/rhel/7/prod/
/etc/yum.repos.d/microsoft.repo:gpgkey=https://packages.microsoft.com/keys/microsoft.asc
>

Explanation

1. In etc/yum.repos.d/microsoft.repo
   • Validate entries for Microsoft Repository

Install Powershell

yum

yum – install

Syntax

sudo yum install [package]

Sample

sudo yum install -y powershell

Output

Output – Image -01

Output – Image -02

Explanation

1. Installed
   • powershell-7.0.1-1.rhel.7.x86_64

Validate Powershell

pwsh

helloWorld

Syntax

pwsh -Command "Write-Host 'hello'"

Sample

pwsh -Command "Write-Host 'Hello $(whoami)'"

Output

Output – Image -01

Explanation

1. We invoked Powershell
   • pwsh
2. Using -Command
   • Sent along a payload
3. Payload
   • Write-Host ‘Hello $(whoami)’

References

1. Microsoft
   • Docs
     • Configure repositories for installing and upgrading SQL Server on Linux
       Link
     • Installing PowerShell on Linux
       Link