I have an iMac with Os 10.13.4 installed. I use Time Machine to create backups on a Seagate external drive. I tried to Manually trash some of my older backups and now can not get rid of them I have tried the sudo prices using Terminal app but It is not working for me.
My iMac drive name is “Macintosh HD” without the quotes. The name of the backup drive is “Seagate External without the quotes.
Can someone please give me the actual commands I need to use in Terminal to delete the trashed backups?