HackerRank Paste – 1 problem solution

In this HackerRank Paste – 1 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 replace the newlines in the file with semicolons as demonstrated in the sample.

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

Replace the newlines in the input file with semicolons as demonstrated in the sample.

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 delimiter between consecutive rows of data has been transformed from the newline to a semicolon.

Problem solution.

paste -d';' -s -

Second solution.

tr "\n" ";" | sed 's/;$/n/'

Third solution.

paste -s -d';'