yields no output.

[jerry]$ awk ‘BEGIN { fruits[“mango”] = “yellow”; fruits[“orange”] = “orange”; \

delete fruits[“orange”]; print fruits[“orange”] }’

8.3. Simulating Multi-Dimensional Arrays

While AWK natively supports only one-dimensional arrays, multi-dimensional arrays can be easily simulated. This is achieved by concatenating the multiple indices into a single string key. By default, AWK uses the built-in SUBSEP variable to join the indices, but any character (like a comma) can be used.

For example, to simulate array[0][0] = 100, you can use the syntax array[“0,0”] = 100.

The following script simulates a 2-D array and prints its elements:

[jerry]$ awk ‘BEGIN { \

array[“0,0”] = 100; array[“0,1”] = 200; array[“0,2”] = 300; \

array[“1,0”] = 400; array[“1,1”] = 500; array[“1,2”] = 600; \

# print array elements \

print “array[0,0] = ” array[“0,0”]; \

print “array[0,1] = ” array[“0,1”]; \

print “array[0,2] = ” array[“0,2”]; \

print “array[1,0] = ” array[“1,0”]; \

print “array[1,1] = ” array[“1,1”]; \

print “array[1,2] = ” array[“1,2”]; }’

Output:

array[0,0] = 100

array[0,1] = 200

array[0,2] = 300

array[1,0] = 400

array[1,1] = 500

array[1,2] = 600

Manipulating data within arrays and variables often requires structured logic, which is provided by AWK’s control flow statements.