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If you accidentally changed something in Linux, there are several ways to undo it. Pressing the uppercase U key will undo the last modified line. Then, press the lowercase U key to create another entry in the undo history. You can also use the comma key to toggle between normal and bold mode, which repeats …

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The M character is the carriage return character. In Windows, the carriage return character is known as line feed, while in Unix, the carriage return becomes the M character. Learn more about line-termination characters on Wikipedia. If you’re unfamiliar with the M character, you can use a text editor or use the cat/grep Unix commands …

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There are several ways to record audio on Ubuntu. One way is to download a free audio recording application called Audio Recorder. This program has been designed specifically for Ubuntu, and you can find it on the web. It records all types of sound, including Skype conversations, streaming audio, background music, and webcams. This program …

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