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Get input from command line file1 & file2

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Reference no: EM13951115

Write a shell program which:

- Get input from command line file1 & file2

- Copy file1 to file2

- Check if there is exactly 2 filenames, if not, printout error message

- Check if file1 is the same as file2, if yes, printout error message

Reference no: EM13951115

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