HackerRank Paste – 2 problem solution

In this HackerRank Paste – 2 problem solution 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.

Problem solution.

paste -d";" - - -

Second solution.

paste -d; - - -

Third solution.

paste -d';' - - - $1