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Little-Known 'Less' Command Options
Less is More
August 4, 2010
If you spend any time at all on the command line, you almost certainly use less (more's backward-scrollable cousin) on a very regular basis. Like me (until recently), however, you may never have taken the time to learn many of the long list of useful commands and shortcuts with which less is provided. Here are a few commands that will help you get more value out of less.
* u and d: Scroll up (backward) or down (forward) half a screen, rather than the full screen provided by SPACE and b.
Read the rest of this Linux command tip at Serverwatch.com