The /usr directory was meant to refer to commands and tools that ... While today’s Unix systems primarily store configuration files and system start-up files in /etc, the focus in those early ...

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 ...

This command can save you a lot of time tracking when you need to quickly determine how a file system or a particular ... She describes herself as "USL" (Unix as a second language) but remembers ...

There are four ways to specify that a file is in UNIX System Services when you use the FILENAME statement or FILENAME function: You can also use these specifications in combination. For example, you ...

Unix provides a lot ... The last command will show you recent logins for any particular user or for everyone. Depending on when the source file for this information (your wtmp file) rolls over ...

People who used UNIX or VMS in the '80s were already familiar with file system permissions, but PCs were just getting to that point. (In my opinion, the DOS attrib command doesn't count.) ...

Hfsdebug is a third-party command-line utility that outputs information stored in the file system's catalog and attributes files. To install it, download the precompiled executable from the ...

There are numerous ways to compare text files on a Linux system from the command line ... She describes herself as "USL" (Unix as a second language) but remembers enough English to write books ...

You can execute UNIX commands from your SAS session either asynchronously or synchronously. When you run a command as an asynchronous task, the command executes independently of all other tasks that ...

Furthermore, all files on the system must have an owner ... system to its full potential requires learning the Unix shell commands -- a vast set of text-based system commands that vaguely resemble ...