Linux数据流管道的相关内容

谈谈Linux下的数据流重定向和管道命令

一、标准输入、标准输出、错误输出概述　　1.标准输入(stdin)是指令数据的输入，代码为0，使用<或者<<,默认是键盘。　　2.标准输出(stdout)是指令执行成功返回的结果，代码为1，使用>或者>>,默认在屏幕显示。　　3.标准错误输出(stderr)...

linux数据流重定向和管道

1、标准输入、输出、错误在执行一个指令的时候，这个指令可能会由文件读入资料，然后经过处理，再将数据输出到屏幕上。一般来说，要执行一个指令，其流程是这样的： 1、标准输入（stdin）：代码为0，使用< 或 << 2、标准输出（stdout）：代码为1，使用>或...

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