What is the default number of lines displayed by the head command?

What is the default number of lines displayed by the head command?

• A. Five lines
• B. Ten lines
• C. Fifteen lines
• D. Twenty lines

Answer: (B)

Viewing the start of a file is what the head command does, and its default behavior is to show the first 10 lines. This gives a quick snapshot without overwhelming the screen. If you want a different amount, use the -n or --lines option. For example, head -n 5 filename displays the first five lines, head -n 15 filename shows the first fifteen, and head -n 20 filename shows the first twenty.

Viewing the start of a file is what the head command does, and its default behavior is to show the first 10 lines. This gives a quick snapshot without overwhelming the screen. If you want a different amount, use the -n or --lines option. For example, head -n 5 filename displays the first five lines, head -n 15 filename shows the first fifteen, and head -n 20 filename shows the first twenty.