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 ...

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 ...

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 ...

Reading files is no big deal with bash: you just redirect the input to the script or pipe the output of another command into the script, or you could do it inside the script if the file names are ...