• Get hostgroups

curl -u "admin" https://<foreman>/api/hostgroups

• Get hostgroups which match <search>

curl -u "admin" https://<foreman>/api/hostgroups?search=<search>

• Create hostgroups pdt1 to pdt 10 inheriting from base/pdt

for i in $(seq 1 10); do
    curl -X POST -H "Content-Type: application/json" \
        -d "{\"hostgroup\": {\"name\": \"pdt${i}\", \"parent_id\": \"14\"}}"  \
        -u "admin" https://<foreman>/api/hostgroups
done

# Import class into env production
hammer proxy import-classes --environment production --id 1
# Apply puppet classe to hostgroup
hammer hostgroup update --name '<hostgroup>'  --puppet-classes '<class1>,<class2>'
# Override all smart class param
for param_id in $(hammer sc-param list --environment production --search '<criteria>' | cut -d'|' -f1 | grep -o '[0-9]*'); do
  hammer sc-param update --override true --omit true --id \${param_id}
done