Git - PowerShell Script to Clean up Local Merged Branches

cleanup-local-git-branches.ps1

## Checkout the main branch
## If your main branch name is different, use that name instead of 'main'
git checkout main

## This will remove the branches 
## which are present on local but are deleted on remote
git fetch --prune

## The below command will get all branches which are merged
## Then it will remove the names 'main', 'master', 'develop' from the list 
## Then for each branch name, it will run git branch delete command
git branch --merged `
| Where-Object { $_ -notmatch "^(\\*|main|master|develop)" } `
| ForEach-Object { git branch -d $_.Trim() }