Use terminal command to delete entire line in OS X

A quick way to delete a line at the terminal if you make a mistake in OS X

Here's a useful command that lets you delete an entire line at the terminal in OS X. This is a huge timesaver if you make a mistake while typing in a command. 1. Open a terminal window. 2. Type in your commands. 3. When you make a mistake, use this command to delete the entire line: crtl-u

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