• If popen fails, do an error exit.

    如果popen失败,则进行出错退出

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  • Caution: using pipe is complex compared to popen !

    警告使用pipe使用popen复杂

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  • Popen is implemented using pipe , fork , and exec .

    popen使用pipe 、forkexec实现的。

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  • This is done with the system call popen(), which can open to a pipe to another process, either for reading or writing.

    系统调用popen()完成的,打开另一个进程管道用于

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  • It shows appropriate use of some system calls and library functions from c, including fopen, fclose, access, setvbuf, perror, strerror, and popen.

    演示了一些系统调用c函数适当使用其中包括fopenfcloseaccesssetvbufperrorstrerrorpopen

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  • For complete flexibility, in Unix-like systems with a popen function, you can pre-process the file with text processing utilities before it is passed into the plot command.

    为了获得更完全灵活性具有popen函数unix类系统中,在将文件传送给plot命令之前可以使用文本处理实用程序对文件进行预处理

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  • Actually, you can still redirect or pipe stderr, but not stdout, since there will not be any standard outputit's being internally piped to the lp process using the popen function.

    实际上仍然可以标准错误使用重定向管道命令,不能对标准输出使用,因为没有任何标准输出正在内部使用popen函数由管道将输送lp进程

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  • This feature is implemented using the popen system call, which allows one process to open a pipe to another process, either for output or input. In this case we open a pipe to the command.

    一特性popen系统调用实现的,系统调用允许进程打开另一个进程的管道,将管道用于输出输入

    youdao

  • This feature is implemented using the popen system call, which allows one process to open a pipe to another process, either for output or input. In this case we open a pipe to the command.

    一特性popen系统调用实现的,系统调用允许进程打开另一个进程的管道,将管道用于输出输入

    youdao

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