目录基本原理命令格式锁的类型常用选项应用场景注意事项总结在linux中，flock是一个用于对文件加锁的实用程序，它可以帮助协调多个进程对同一个文件的访问，避免出现数据不一致或冲突等问题。
I have a Java 开发者_运维问答app that takes a long time to be initialized (so I can\'t use a command-line like interface) and I need to pass text and receive the output of a Java method from Python. I
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