How to Clean Up the List of Orgs:
To quickly find the list of orgs recently authorised, you run the command sfdx force:org:list. It should display a list of scratch orgs and orgs either connected or no longer in use.
You have two options to clean up the list.
- Remove the org by logging off
- Delete the scratch org
Remove the org by logging off.
sfdx force:auth:logout -u <alias>
You get this confirmation screen and important reminder if you want to reuse your scratch org you must know the pasword before logging out.
Delete the scratch org
sfdx force:org:delete -u <alias>