You can run the migration script,
jfrog-nexus-migrator-<version>.sh, in a single stage and enter the required inputs for the different stages. You can also run the migration script to complete the different stages separately. If you run the stages separately, verify that you follow the correct sequence when you run the script.
You can run the migration process more than once to load any new repositories, artifacts, and security configuration in Nexus Repository Manager to Artifactory.