[Frankys-MacBook-Pro:~ franky$] /Users/franky/Downloads/sqlcl/sqlcl/bin/sql /nolog  

SQLcl: Release 19.4 Production on Sun Feb 23 07:25:02 2020

Copyright (c) 1982, 2020, Oracle.  All rights reserved.


SQL> set cloudconfig /Users/franky/Downloads/Wallet_TESTDB.zip
Operation is successfully completed.
Operation is successfully completed.
Using temp directory:/var/folders/1h/mwvhtfsn48gc06mh8yp9lgkr0000gn/T/oracle_cloud_config6631314340825709839
SQL> connect admin@testdb_tp
Password? (**********?) *************
Connected.