Part 1: Implementing the 'uniq' command. 'uniq' is a Unix utility which, when fed a text file, outputs the file with adjacent identical lines collapsed to one. If a filename is provided on the command ...

K THOMPSON has a BS and an MS in Electrical Engineering from the University of California, Berkeley (1965 and 1966 respectively). He has been a member of the Technical Staff in the Computing Science ...

People who have had bad experiences on Windows disks that performed poorly after they had become very fragmented often wonder if they need to apply some kind of periodic analysis and defragmentation ...

GUIs are great—we wouldn’t want to live without them. But if you’re a Mac or Linux user and you want to get the most out of your operating system (and your keystrokes), you owe it to yourself to get ...

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 ...

The find command is one of the most basic Unix commands, but that doesn't mean you're making good use of its many features. Just because a Unix command is one those most of us learn within the first ...