冒犯
我住的小鎮雖然在加州，但比起三藩市、柏克萊、洛杉磯等地，卻是相當保守，居民以白人福音派基督徒為主；大學校園內的氣氛一般都算自由開放，可是，一走出校園，便很容易感到一股不弱的保守氣息（尤其是看到那遍佈全
The Unix directory problem and the history of directories
Back in the beginning, Unix was a surprisingly simple, straightforward,and limited operating system. Many things were implemented in prettymuch the most straightforward way possible, including the filesystemand especially including directories.
In V7, directories were very simple. Directory entries were 16-bytestructures with 2 bytes for the inode number and 14 for the filename. Directories were just a linear array of some size of thesestructures (stored in a series of disk blocks like a regular file);unused entries had