Create an awk script file, myawkmax4, that will read 4 numbers, determine which number is the largest one, and then display the largest number.

Your awk script, myawkmax4, must include a self-defined function with 4 parameters.

No awk built-in functions are allowed to be used in your script.

Please test your script :

$ ./myawkmax4 3 1 5 4

The largest number is 5

$ ./myawkmax4 -3 -1 -2 -4

The largest number is -1