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November 02, 2010
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Optimizing Your Top Experience
By Bryan Young
For a long time after I began working in a Unix environment, I was using the top command right out of the box, because that was all I knew. I knew that I could get my machine's load average and memory usage, and other information about running processes, but that was it.

It wasn't until I dug a little deeper that I was able to really appreciate top for all that it was worth.

The best place to start when learning something new is in the help section, so go ahead and run top. Now press h to open up the "Help for Interactive Commands" menu. You will see a long list of commands that you can run in the main screen to change how the data is displayed. For instance, to toggle colors, you press z, s or d will let you change the refresh interval, and 1 will show the usage for each processor core as opposed to a summary.

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