The awk extraction and reporting language does not directly support enumeration. However, it is possible to simulate enumberation by using a variable and [[nudge?]] operator combination. In the following example we enumerate the values for a set of fruit names:
BEGIN {
n=1 # We are enumerating from a value of one
apple=++n
banana=++n
cherry=++n
# We give raspberry an explicit value of eighteen
n=raspberry=18
}