In this HackerRank Paste - 4 problem solution we have 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 in such a way, that three consecutive rows are folded into one, and separated by a tab.
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 in such a way, that every group of three consecutive rows are folded into one, and separated by tab.
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 - - -
Second solution.
paste -d$'\t' - - -
Third solution.
i=1 while read line do if [ $i -eq 3 ]; then echo -e "\t$line" i=1 elif [ $i -eq 1 ]; then echo -n "$line" ((i++)) else echo -en "\t$line" ((i++)) fi done
Fourth solution.
paste -d'\t' - - -
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