在Linux中，文件描述符（file descriptor, fd）和FILE指针（也称为文件流指针，FILE pointer）是两种常见的文件操作接口。文件描述符是一个整数，通过系统调用直接操作文件，而FILE指针是通过C标准库函数操作文件。 文件描述符（fd）： 由操作系统分配的一个整数标识 ...

alrite, so I'm trying to use the select function to tail a file to see when it has information ready to be input, but it needs to know the file descriptor of the ifstream to be able to work. I've ...

Last week’s column looked at how we can read from and write to files by associated the files with user-defined file descriptors. This week, we take this idea a bit further. Closing File Descriptors In ...

Have you ever wanted to read a file one line at a time in a shell script and found the task to be a lot more trouble than you ever imagined? If you use a “for line ...

Recently I needed to create a script that processed two input files. By processed I mean that the script needed to get a line from one file, then get a line from the second file, and then do something ...