dsync synchronizes the contents of two directories or just performs a simple directory backup. It remembers state between invocations and tries to track and reconcile changes between successive runs and between independent synchronizations of multiple targets.
dsync使两个目录的内容保持同步,或仅仅支持一个简单的目录备份。它记得调用间的状态,并努力追踪和协调连续运行之间和多个目标的独立同步之间的变化。