Write a shell (text-based) program, called sum_all. py, opens a text file called stuff. txt with 1 number per line and prints out the sum of all the numbers (no matter how long the file is).

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which functions return a valid value without any arguments?

(-blank- and -blank- return a valid value without any arguments.)

1st -blank-

today

sqrt

count

2nd -blank-

round

now

sqrt