If you're not yet comfortable with writing scripts on Unix and Linux systems, this post might get you off to a healthy start. Creating a script on a Unix or Linux system can be dead easy or ...

The 'sudo' keyword in Unix and Linux allows users to execute certain commands with special-access privileges that cannot otherwise run on a given machine by a user with a lower level of clearance.

Last week’s column introduced NTP, the Network Time Protocol and the concept of highly accurate timekeeping. While numerous commands exist to help system administrators maintain fairly accurate time ...

The fuser (pronounced “ef-user”) command is a very handy command for determining who is currently using a particular file or directory. If one user can’t access a file because another user has it ...

One particular frustration with the UNIX shell is the inability to easily schedule multiple, concurrent tasks that fully utilize CPU cores presented on modern systems. The example of focus in this ...

I’ve often extolled the philosophy of Unix, and as the title implies, I’m not about to stop. Before I learned computer science, I thought all computers were impenetrably arcane. But when I grasped ...