emoji relevant filename commands

## powershell - remove everything in a filename up to the first dash
## useful when emoji are named 392394-something-something.png

foreach ($file in (get-childitem *.png).name) {
Rename-Item $file ($file -replace '^[^-]*-\s*')
}

## powershell - transform underscores to dashes
Get-ChildItem *.png | Rename-Item -NewName { $_.Name -replace '_','-' }

## CMD - prefix all files in a folder with a given prefix
for /f "Tokens=*" %f in ('dir /l/b/a-d') do (rename "%f" "PREFIX_HERE-%f"