2001年の初リリースから十余年、名称は当初の「Mac OS X」から「OS X」に、開発コードネームもネコ科大型動物からカリフォルニアの名所へと変更されたが、OS XのOSとしての根本部分は変わらない。NetBSDやFreeBSDなど他のPC-UNIXの成果物を取り入れつつ進化を図り ...

First, we divide the memory into blocks, which is the unit in which we read from and write into memory. In practice, the memory is usually sector-addressable. For simplicity, we make it ...

The ls command is probably one of the first commands that anyone using Unix learns, but it only shows a small portion of the information that is available with the stat command. The stat command pulls ...

A lot of information is available about individual files on a Unix system. For example, the ls -l command will display the permissions matrix and ls -i will display a file’s inode. But, if we want to ...

Metadata is data about data. That is to say that metadata contains information about a piece of data. For example, if I own a car then I have a set of information about the car but which is not part ...

While the average Unix user is generally satisfied by the date/time stamps that he sees when using the ls -l command, it is sometimes useful to remember that there are actually several time stamps ...

I am currently writing a version of File Tree Walk for my systems programming class for the UNIX operating system. I was wondering if there was a verion of the stat function that takes an inode number ...