paste 2#

Problem#

In this challenge, we practice using the paste command to merge lines of a given file.

You are given a CSV file where each row contains the name of a city and its state separated by a comma. Your task is to restructure the file so that three consecutive rows are folded into one line and are separated by semicolons.

Input Format#

You are given a CSV file where each row contains the name of a city and its state separated by a comma.

Output Format#

Restructure the file so that three consecutive rows are folded into one line and are separated by semicolons.

Sample Input#

Albany, N.Y.
Albuquerque, N.M.
Anchorage, Alaska
Asheville, N.C.
Atlanta, Ga.
Atlantic City, N.J.
Austin, Texas
Baltimore, Md.
Baton Rouge, La.
Billings, Mont.
Birmingham, Ala.
Bismarck, N.D.
Boise, Idaho
Boston, Mass.
Bridgeport, Conn.

Sample Output#

Albany, N.Y.;Albuquerque, N.M.;Anchorage, Alaska
Asheville, N.C.;Atlanta, Ga.;Atlantic City, N.J.
Austin, Texas;Baltimore, Md.;Baton Rouge, La.
Billings, Mont.;Birmingham, Ala.;Bismarck, N.D.
Boise, Idaho;Boston, Mass.;Bridgeport, Conn.

Explanation#

The given input file has been reshaped as required.

Solution#

paste-2.sh#

#!/usr/bin/env bash

# shellcheck disable=SC2162
paste -d ';;\n' -s -

paste 2

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