android CBOR not found code example

Example 1: mac brew: command not found

ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"

Example 2: ntpdate not found

$ sudo sntp -sS pool.ntp.org
Password:
sntp [email protected] Tue Mar 21 14:36:42 UTC 2017 (136.200.1~2533)
2018-09-29 19:42:41.448103 (-0200) +1087.742403 +/- 725.183462 pool.ntp.org 188.68.36.203 s2 no-leap