-m [mem byte] Sets the low memory threshold (in MB). 0 to 1 The value 0 means not to perform the low memory threshold check. Example 1: The OOM configuration is displayed by default. OHOS:/$ oom [oom] ...

This command is used to create an empty file in a specified directory. If this command is executed to create an existing file, the execution will be successful but the timestamp will not be updated.