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docs(returna): created a subject for returna exercise 		2 years ago
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README.md docs(returna): created a subject for returna exercise 2 years ago

README.md

returna

Instructions

Write a program that takes a string as an argument, if the string contains the letter a then print Contains the letter followed by a newline \n.

  • If there is no character a in the string, the program writes !(Contains the letter) followed by a newline \n.
  • If the number of parameters is not 1, the program displays a newline \n.

Usage

$ go run . "do I exist" | cat -e
!(Contains the letter)$
$
$ go run . "I do exist a" | cat -e
Contains the letter$
$
$ go run . "one" "two" | cat -e
$