{ "RPOPLPUSH": { "summary": "Returns the last element of a list after removing and pushing it to another list. Deletes the list if the last element was popped.", "complexity": "O(1)", "group": "list", "since": "1.2.0", "arity": 3, "function": "rpoplpushCommand", "deprecated_since": "6.2.0", "replaced_by": "`LMOVE` with the `RIGHT` and `LEFT` arguments", "doc_flags": [ "DEPRECATED" ], "command_flags": [ "WRITE", "DENYOOM" ], "acl_categories": [ "LIST" ], "key_specs": [ { "flags": [ "RW", "ACCESS", "DELETE" ], "begin_search": { "index": { "pos": 1 } }, "find_keys": { "range": { "lastkey": 0, "step": 1, "limit": 0 } } }, { "flags": [ "RW", "INSERT" ], "begin_search": { "index": { "pos": 2 } }, "find_keys": { "range": { "lastkey": 0, "step": 1, "limit": 0 } } } ], "reply_schema": { "oneOf": [ { "type": "string", "description": "The element being popped and pushed." }, { "type": "null", "description": "Source list is empty." } ] }, "arguments": [ { "name": "source", "type": "key", "key_spec_index": 0 }, { "name": "destination", "type": "key", "key_spec_index": 1 } ] } }