You use the chmod command to set each of these permissions. To see what permissions have been set on a file or directory, we ...

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 ...

is the name of a UNIX command, executable program, or shell script to which you want to route output or from which you want to read input. The command(s) must be enclosed in either double or single ...

This Wiley Publishing tome is big (more than 650 pages), useful and very complete. Be warned, however, that its scope is limited to system administration. The purpose of the book is to solve “real ...

Few aspects of Unix system administration are more intimate than the relationship between the admin and their chosen shell. After all, the shell is the most fundamental interface to the system, the ...

In honor of Mexico’s victory over the forces of Napolean III only 153 years ago, today’s post is going to cover five unusual Unix commands that maybe even you have never used. These include ddate, ...

ITworld.com – One of my newer users asked me just yesterday how he might record a login session in order to review the commands he entered and the output he generated at a later time. I pointed out ...