Sometimes looking for information on a Unix system is like looking for needles in haystacks. Even important messages can be difficult to notice when they’re buried in huge piles of text. And so many ...

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.

What would your answer be if a selection team charged with hiring a new CIO to develop and implement an organization-wide “strategic systems architecture” were to ask you what management ...

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 ...

User profiles aren’t restricted to what shells your users use, what groups they are members of, and what privileges they have been allocated. While these factors are important, so are when they log in ...

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 ...

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