Filter an Array with Patterns#

Overview#

Objective#

In this challenge, we practice reading and transforming arrays.

Resources#

Here’s a great tutorial with useful examples related to arrays in Bash.

Task#

You are given a list of countries, each on a new line. Your task is to read them into an array and then transform them in the following way:

The first capital letter (if present) in each element of the array should be replaced with a dot (‘.’). Then, display the entire array with a space between each country’s names.

Input Format#

The input format consists of a list of country names each on a separate line. The only characters present in the country names will be upper or lower case characters and hyphens.

Output Format#

Transform the names as described and display the entire array of country names with a space between each of them.

Sample Input#

Namibia
Nauru
Nepal
Netherlands
NewZealand
Nicaragua
Niger
Nigeria
NorthKorea
Norway

Sample Output#

.amibia .auru .epal .etherlands .ewZealand .icaragua .iger .igeria .orthKorea .orway

Explanation

The first capital letter of each name has been replaced with a dot (‘.’).

Filter an Array with Patterns

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