Write a program to display the contents of the term and home, C/C++ Programming

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Write a program to display the contents of the term and home

Problem

Write a program to display the contents of the TERM, HOME, SHELL, USER from environment list by giving options and display the number if it uses 'n' option. Display all the environment variables if it uses 'a'. Need to display the error message either there is no option in optstring or no option.

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C/C++ Programming: Write a program to display the contents of the term and home

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