Most every Unix sysadmin has run smack into line ending incompatibilities from time to time. The most common problem is the appearance of ^M characters at the ends of lines in text files that were ...

If you regularly use networks that change your OS X, Linux, or Unix system's host name, you may notice the Terminal command prompt reflect this. Here is how to prevent this from happening. Topher ...

Lifehacker reader Michael writes in with a nifty tip that was lurking in our comments all along, but deserves to see the bright light of posting. If you're already using the Unix-like Cygwin, it's an ...

A firmware password secures a system against unauthorized changes at the ok prompt. If you don’t have a firmware password set, anyone with access to your system’s console can modify your OpenBoot ...

In the previous two installments in this series, we looked at the basics of using the Terminal to access the Unix command line at the heart of Mac OS X, and then at how to use the Terminal to move ...

The ‘0~1000’ argument tells it to select each 1,000th line from the target file. The 0 tells it to start with line 0 which, of course, doesn’t exist, and the 1000 tells it how many lines to skip over ...

Notepad, the text editor that ships with Windows, is not a complicated application. For many, this is its major advantage—by having virtually no features, it cannot go wrong—but especially for ...