Bash scripts are powerful, but with power comes great responsibility. It’s very easy for sloppy or poorly-planned code to do real damage, so it’s a good idea to be careful and practice defensive ...

This article is excerpted from Chapter 7 of my book Linux Programming by Example: The Fundamentals, published by Prentice Hall (ISBN: 0-13-142964-7). Chapters 1 through 6 cover the standard APIs for ...

The following excerpt is from chapter 3, User-Level Memory Management, of Arnold Robbins’ book Linux Programming by Example: The Fundamentals, Prentice Hall PTR; (April 12, 2004), used with permission ...

The nblock() function reports how many disk blocks the file uses. This calculation is based on the file's size as returned by stat(). The V7 block size was 512 bytes--the size of a physical disk ...