目录Shell变量什么是变量shell变量定义shell变量分类环境变量常见变量变量引用变量赋值本地变量变量定义变量引用变量赋值变量删除位置参数变量变量定义变量引用特殊变量变量定义变量引用总结上一篇我们讲述了Shell的
I\'m working on a problem which we have to use semaphores to solve. I have an array which contains two semaphores, gsem, and given certain conditions call sem_wait(&(gsem[me])), which is supposed
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