$ curl cheat.sh/
# sleep
# Delay for a specified amount of time.
# More information: <https://pubs.opengroup.org/onlinepubs/9699919799/utilities/sleep.html>.

# Delay in seconds:
sleep seconds

# Execute a specific command after 20 seconds delay:
sleep 20 && command

$
Follow @igor_chubin cheat.sh tldr