$ curl cheat.sh/

# mktemp
# Create a temporary file or directory.
# More information: <https://ss64.com/osx/mktemp.html>.

# Create an empty temporary file and print the absolute path to it:
mktemp

# Create an empty temporary file with a given suffix and print the absolute path to file:
mktemp --suffix ".ext"

# Create a temporary directory and print the absolute path to it:
mktemp -d

$

Follow @igor_chubin cheat.sh tldr