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Allow the user to specify the file name on the command-line

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Reference no: EM132354734

Question

1. Write a program that reads from a text file (input.txt). Read each line and send it to the output file (output.txt), preceded by line numbers. If the input file is:

Mary had a little lamb

Whose fleece was white as snow.

And everywhere that Mary went,

The lamb was sure to go!

2. Repeat Question 1, but allow the user to specify the file name on the command-line. If the user doesn't specify any file name, then prompt the user for the name.

Note: IDLE does not have a way to run a program from the command line. You'll need to copy your program to the Python directory along with the input.txt file to execute. Go to the command prompt (CMD) and change directory to the Python directory.

a) Your code with comments

b) A screenshot of the execution

Reference no: EM132354734

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