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Often abbreviated LF, a line feed is acode that moves the cursor on a display screen down one line. In the ASCII character set, a line feed has a decimal value of 10. On printers, a line feed advances the paper one line.

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A line feed is a control character as defined in Wikipedia. In former times such control characters were used to mechanically feed a line in a teletype writer or to let the carriage literally return to the left of the paper.

What is a line feed? A line feed is a control character as defined in Wikipedia. In former times such control characters were used to mechanically feed a line in a teletype writer or to let the carriage literally return to the left of the paper. Nowadays, such control characters are mainly used to position cursors in outputs.

In the ASCII character set, a line feed has a decimal value of 10. On printers, a line feed advances the paper one line. Some printers have a button labeled LF that executes a line feed when pressed.

The Line Feed is represented by ASCII number 10, and it harkens back to the action of a typewriter rolling a piece of paper up by one line. Interestingly enough, the combination of these two functions is integrated into the ENTER/RETURN key. Also known as the CRLF character, this handy shortcut both moves you to the left and down a line.