Delete Backs up to erase one character. Backspace Mapped as a backspace key, displaying ^H. Ctrl-u Erases the command line. Ctrl-w Erases the last word on the command line. Ctrl-s Stops flow of output ...

Memory is still one of the things that most determines how well your Unix servers will perform. Knowing what commands will tell you what you need to know and what their responses mean will help keep ...

Click for a PDF with this and four other essential Linux articles. And, if you’ve ever heard anyone say that for Unix, everything is a file, you might not be too surprised to learn that lsof works ...

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 ...

If your company handles phone marketing and you use Unix or Linux workstations such as Ubuntu PCs, then you have a few tools at your disposal for advertising. One is the "mailx" command, which allows ...

Unix was developed as a command line interface in the early 1970s with a very rich command vocabulary. DOS followed more than a decade later for the IBM PC, and DOS commands migrated to Windows.