What does the '$3, $5' represent in the 'awk' command?

In the awk command, $3 and $5 represent the third and fifth fields (or columns) of the input data, respectively.

For example, if you have a line of text that is space-separated, $1 would refer to the first word, $2 to the second word, $3 to the third word, and so on. The fields are indexed starting from 1.

Here's a quick example:

echo "apple banana cherry date" | awk '{print $3, $4}'

This command would output:

cherry date

In this case, $3 corresponds to "cherry" and $4 corresponds to "date".