Kushan Perera dev-kperera

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I am a multi-cloud architect & Lead Software Engineer specializing in Cloud + AI solutions.

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dev-kperera / install-n8n-with-node.sh

Last active October 4, 2025 11:38

Script to installs n8n on a server using NVM and npm.

	#!/bin/bash
	set -e

	# --- This script installs n8n on a server using NVM and npm. ---
	# This method avoids Docker and can be more resource-efficient.

	echo "### Starting n8n installation via NVM/npm... ###"

	# 1. Update System Packages and Install Prerequisites
	echo "### Step 1: Updating system packages and installing build-essential... ###"

dev-kperera / change-biography.yaml

Created May 12, 2024 22:25

Build your own copilot with Microsoft Copilot studio

TODO

dev-kperera / Arduino-Temp-Sensor.cpp

Last active March 23, 2024 15:39

Using a Temperature Sensor to Control the Speed of a Motor Using Arduino

	float temp;
	int tempPin = A1; //arduino pin used for temperature sensor. CHANGE THIS BASED ON YOUR CONFIGURATION
	int tempMin = 70;
	int tempMax = 75;
	int motor = 2; // the pin where motor is connected. CHANGE THIS BASED ON YOUR CONFIGURATION
	int motorSpeed = 0;

	void setup() {
	pinMode(motor, OUTPUT);
	pinMode(tempPin, INPUT);

dev-kperera / AzureAD - Invite guest users.ps1

Last active February 20, 2020 18:27

CSV headers: InvitedUserEmailAddress, DispName, RedirectURL

	# connect
	$cred = Get-Credential
	Connect-AzureAD -Credential $cred

	# setting variables
	$invitations = import-csv ..\invitations.csv
	$messageInfo = New-Object Microsoft.Open.MSGraph.Model.InvitedUserMessageInfo
	$messageInfo.customizedMessageBody = "Hey there! Check this out. I created an invitation through PowerShell"

	# loop

dev-kperera / AzureAD - Invite guest users.ps1

Created February 20, 2020 18:24

CSV headers

	$cred = Get-Credential
	Connect-AzureAD -Credential $cred
	$invitations = import-csv C:\data\invitations.csv
	$messageInfo = New-Object Microsoft.Open.MSGraph.Model.InvitedUserMessageInfo
	$messageInfo.customizedMessageBody = "Hey there! Check this out. I created an invitation through PowerShell"
	foreach ($email in $invitations) {New-AzureADMSInvitation -InvitedUserEmailAddress $email.InvitedUserEmailAddress -InvitedUserDisplayName $email.Name -InviteRedirectUrl https://wingtiptoysonline-dev-ed.my.salesforce.com -InvitedUserMessageInfo $messageInfo -SendInvitationMessage $true}

dev-kperera / SharePoint Online - Bulk add items to list.ps1

Created December 19, 2019 19:58

Using SharePointPnP.PowerShell modules.

	# variables
	$siteURL = "https://org.sharepoint.com/sites/siteName"
	$sharePointAdminUser = '[email protected]'
	$cred = Get-Credential -UserName $sharePointAdminUser -Message 'Connect with a user with global level permissions'

	# connect
	Connect-PnPOnline -Url $siteURL -Credentials $cred

	# Import values from CSV
	$path = ".\source.csv"

dev-kperera / React - Set State with Spread Operator.ts

Last active December 19, 2019 20:00

React setState with spread operator when you need to change values of state object item. Motivation: https://stackoverflow.com/questions/43638938/updating-an-object-with-setstate-in-react

	this.setState(prevState => ({
	OBJECT_NAME: {
	...prevState.OBJECT_NAME,
	OBJECT_KEY : NEW_VALUE
	}}));

dev-kperera / ShareGate - Script to migrate OneDrive with ShareGate libraries.ps1

Last active December 19, 2019 20:00

Eventhough we could migrate OneDrive content with PowerShell. I'm giving a try to migrate content with ShareGate PowerShell addins.

	# tenants
	$tenantOne = connect-site -Url https://tenantOne-admin.sharepoint.com -Browser
	$tenantTwo = connect-site -Url https://tenantTwo-admin.sharepoint.com -Browser

	# List of unique user names of users need to migrate
	$csvFile = "C:\OneDriveMirationUserEmailList.csv"
	$table = Import-Csv $csvFile -Delimiter ";"

	# ShareGate incrementatl copy config. This will be only usable if you are copying incrementally
	$copysettings = New-CopySettings -OnContentItemExists IncrementalUpdate

dev-kperera / OneDrive personal site provisioning.ps1

Created April 26, 2019 18:10

Script to provision OneDrive personal sites using ShareGate PowerShell libraries. More information: https://support-desktop.sharegate.com/hc/en-us/articles/115000641328-Get-OneDrive-URL

	# Connect to Office 365
	$tenant = connect-site -Url https://tenant-admin.sharepoint.com -Browser

	# Get list of emails
	$eMailCSV = "C:\emailList.csv"
	$table = Import-Csv $eMailCSV -Delimiter ";"

	# Iterate through emails and provision OneDrive sites
	foreach ($row in $table) {
	Get-OneDriveUrl -Tenant $tenantMoravia -Email $row.email -ProvisionIfRequired

dev-kperera / ConnectSharePointOnline.ps1

Created April 2, 2019 18:13

SharePoint site owners have new options for applying custom styles and colors to sites that make it easier to define and manage themes across site collections

	# Commands to connect SharePoint Online

	$adminUPN="[email protected]"
	$orgName= Read-Host -Prompt 'Name of your Office 365 organization, example: contoso'
	$userCredential = Get-Credential -UserName $adminUPN -Message "Type the password."
	Connect-SPOService -Url https://$orgName-admin.sharepoint.com -Credential $userCredential

	# Verify SharePont Online Management Shell

	Get-Module -Name Microsoft.Online.SharePoint.PowerShell -ListAvailable \| Select Name,Version

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