profile_merge.json

{
  "commandDescription": "This command is used in the lower environments such as ScratchOrgs , Development / System Testing Sandboxes, inorder to apply the changes made in the environment to retrieved profile, so that it can be deployed to the higher environments",
  "folderFlagDescription": "comma separated list of folders to scan for profiles. If ommited, the folders in the packageDirectories configuration will be used.",
  "profileListFlagDescription": "comma separated list of profiles. If ommited, all the profiles found in the folder(s) will be merged",
  "metadataFlagDescription": "comma separated list of metadata for which the permissions will be retrieved.",
  "deleteFlagDescription": "set this flag to delete profile files that does not exist in the org."
}