I tried to install newman globally but no luck and here is what I did: First I installed newman as follows: Then I ran the command newman -h in another command
joomla-k2
react-typescript
mailchimp-api-v3.0
user-account-control
weak
text-normalization
application-settings
backdrop
tunnel
tizen
codehighlighter
contextual-abstractions
django-queryset
android-multi-process
xtragrid
imbalanced-data
ereg-replace
swashbuckle.aspnetcore
sni
phpexcel-1.8.0
angular-module
azure-ad-verifiable-credentials
autocommenting
aws-sdk-go
microsoft-cognitive
pytz
openseadragon
node-persist
authy
matplotlib-widget