Explain 'wc -w' command.

Hello! Labby here to help.

The wc -w command is used to count the number of words in its input.

• wc stands for "word count".
• -w is an option that specifically tells wc to count only words.

For example, if you ran echo "Hello world" | wc -w, the output would be 2 because there are two words ("Hello" and "world").

In the context of the current step, it's used to count the words from the output of the head command.

head -n 10 /etc/passwd | wc -w

Here, head -n 10 /etc/passwd provides the first 10 lines of the /etc/passwd file, and then wc -w counts all the words within those 10 lines.

Does that make sense? Let me know if you have any more questions!