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 ...
Looks simple enough; you would think there is not much overhead with only those two system calls. In reality, this couldn't be further from the truth. Behind those two calls, the data has been copied ...
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 ...