Cacher is the code snippet organizer for pro developers

#VMs that are only lowercase
get-vm | ? Name -cmatch '^[a-z0-9]*$' |%{ Set-VM -VM $_ -Name $_.Name.ToUpper() -Confirm:$False}

#VMs that are anything except uppercase (and templates, and vROps)
get-vm | ? Name -cnotmatch '^[A-Z0-9]*$' |?{$_.Name -notlike "w2k*" -and $_.Name -notlike "*TMP_*" -and $_.Name -notlike "vROps"} |%{ Set-VM -VM $_ -Name $_.Name.ToUpper() -Confirm:$False}