How to Merge Multiple Columns in to Two Columns based on Column 1 Value? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern) 2019 Community Moderator Election Results Why I closed the “Why is Kali so hard” questionHow can I compare two files based on the value of the first column?Read a two-character column as two separate columnshow to merge two files based on single columnMerge multiple lines in same file based on column 1Print values from one column to another between two files based on patterns in each rowHow to do multiple splits of a csv file based on unique column values?Merge multiple lines column by column based on column 1 - same file?Group rows in one file based on column valueHow to delete columns with zero value in each line?How to split file based on number of columns?

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How to Merge Multiple Columns in to Two Columns based on Column 1 Value?



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 17/18, 2019 at 00:00UTC (8:00pm US/Eastern)
2019 Community Moderator Election Results
Why I closed the “Why is Kali so hard” questionHow can I compare two files based on the value of the first column?Read a two-character column as two separate columnshow to merge two files based on single columnMerge multiple lines in same file based on column 1Print values from one column to another between two files based on patterns in each rowHow to do multiple splits of a csv file based on unique column values?Merge multiple lines column by column based on column 1 - same file?Group rows in one file based on column valueHow to delete columns with zero value in each line?How to split file based on number of columns?



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1















I have a text file in the below sample format



File.txt



Record1 20 23;
Record2 256;
Record3 45 679 98 1;


The no of columns in each line can vary. I want to change the file with only two columns based on column 1 Value. Below is the target output.



File_2_Columns.txt



Record1 20;
Record1 23;
Record2 256;
Record3 45;
Record3 679;
Record3 98;
Record3 1;









share|improve this question









New contributor




rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.


























    1















    I have a text file in the below sample format



    File.txt



    Record1 20 23;
    Record2 256;
    Record3 45 679 98 1;


    The no of columns in each line can vary. I want to change the file with only two columns based on column 1 Value. Below is the target output.



    File_2_Columns.txt



    Record1 20;
    Record1 23;
    Record2 256;
    Record3 45;
    Record3 679;
    Record3 98;
    Record3 1;









    share|improve this question









    New contributor




    rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      1












      1








      1








      I have a text file in the below sample format



      File.txt



      Record1 20 23;
      Record2 256;
      Record3 45 679 98 1;


      The no of columns in each line can vary. I want to change the file with only two columns based on column 1 Value. Below is the target output.



      File_2_Columns.txt



      Record1 20;
      Record1 23;
      Record2 256;
      Record3 45;
      Record3 679;
      Record3 98;
      Record3 1;









      share|improve this question









      New contributor




      rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      I have a text file in the below sample format



      File.txt



      Record1 20 23;
      Record2 256;
      Record3 45 679 98 1;


      The no of columns in each line can vary. I want to change the file with only two columns based on column 1 Value. Below is the target output.



      File_2_Columns.txt



      Record1 20;
      Record1 23;
      Record2 256;
      Record3 45;
      Record3 679;
      Record3 98;
      Record3 1;






      shell-script text-processing






      share|improve this question









      New contributor




      rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question









      New contributor




      rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question








      edited 5 hours ago









      steve

      14.4k22653




      14.4k22653






      New contributor




      rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked 5 hours ago









      rkatragarkatraga

      175




      175




      New contributor




      rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      rkatraga is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.




















          1 Answer
          1






          active

          oldest

          votes


















          4














          Here's one way



          awk 'for(a=2;a<=NF;a++)printf "%s %s%cn",$1,$a,a==NF ? "" : ";"' File.txt >File_2_Columns.txt


          Good luck with the rest of your homework ;-)



          If teacher is giving extra credits for shortest answer, try



          awk 'for(a=2;a<=NF;)printf"%s%cn",$1" "$a,a++-NF?";":""' File.txt >File_2_Columns.txt





          share|improve this answer




















          • 1





            Thank you so much. Got a better idea on loops inside awk. Code makes a lot of sense.

            – rkatraga
            4 hours ago











          • ... or perhaps 'BEGINORS=RS=";n" for(a=2; a<=NF;) print $1,$(a++)'

            – steeldriver
            4 hours ago











          Your Answer








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          1 Answer
          1






          active

          oldest

          votes








          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes









          4














          Here's one way



          awk 'for(a=2;a<=NF;a++)printf "%s %s%cn",$1,$a,a==NF ? "" : ";"' File.txt >File_2_Columns.txt


          Good luck with the rest of your homework ;-)



          If teacher is giving extra credits for shortest answer, try



          awk 'for(a=2;a<=NF;)printf"%s%cn",$1" "$a,a++-NF?";":""' File.txt >File_2_Columns.txt





          share|improve this answer




















          • 1





            Thank you so much. Got a better idea on loops inside awk. Code makes a lot of sense.

            – rkatraga
            4 hours ago











          • ... or perhaps 'BEGINORS=RS=";n" for(a=2; a<=NF;) print $1,$(a++)'

            – steeldriver
            4 hours ago















          4














          Here's one way



          awk 'for(a=2;a<=NF;a++)printf "%s %s%cn",$1,$a,a==NF ? "" : ";"' File.txt >File_2_Columns.txt


          Good luck with the rest of your homework ;-)



          If teacher is giving extra credits for shortest answer, try



          awk 'for(a=2;a<=NF;)printf"%s%cn",$1" "$a,a++-NF?";":""' File.txt >File_2_Columns.txt





          share|improve this answer




















          • 1





            Thank you so much. Got a better idea on loops inside awk. Code makes a lot of sense.

            – rkatraga
            4 hours ago











          • ... or perhaps 'BEGINORS=RS=";n" for(a=2; a<=NF;) print $1,$(a++)'

            – steeldriver
            4 hours ago













          4












          4








          4







          Here's one way



          awk 'for(a=2;a<=NF;a++)printf "%s %s%cn",$1,$a,a==NF ? "" : ";"' File.txt >File_2_Columns.txt


          Good luck with the rest of your homework ;-)



          If teacher is giving extra credits for shortest answer, try



          awk 'for(a=2;a<=NF;)printf"%s%cn",$1" "$a,a++-NF?";":""' File.txt >File_2_Columns.txt





          share|improve this answer















          Here's one way



          awk 'for(a=2;a<=NF;a++)printf "%s %s%cn",$1,$a,a==NF ? "" : ";"' File.txt >File_2_Columns.txt


          Good luck with the rest of your homework ;-)



          If teacher is giving extra credits for shortest answer, try



          awk 'for(a=2;a<=NF;)printf"%s%cn",$1" "$a,a++-NF?";":""' File.txt >File_2_Columns.txt






          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 5 hours ago

























          answered 5 hours ago









          stevesteve

          14.4k22653




          14.4k22653







          • 1





            Thank you so much. Got a better idea on loops inside awk. Code makes a lot of sense.

            – rkatraga
            4 hours ago











          • ... or perhaps 'BEGINORS=RS=";n" for(a=2; a<=NF;) print $1,$(a++)'

            – steeldriver
            4 hours ago












          • 1





            Thank you so much. Got a better idea on loops inside awk. Code makes a lot of sense.

            – rkatraga
            4 hours ago











          • ... or perhaps 'BEGINORS=RS=";n" for(a=2; a<=NF;) print $1,$(a++)'

            – steeldriver
            4 hours ago







          1




          1





          Thank you so much. Got a better idea on loops inside awk. Code makes a lot of sense.

          – rkatraga
          4 hours ago





          Thank you so much. Got a better idea on loops inside awk. Code makes a lot of sense.

          – rkatraga
          4 hours ago













          ... or perhaps 'BEGINORS=RS=";n" for(a=2; a<=NF;) print $1,$(a++)'

          – steeldriver
          4 hours ago





          ... or perhaps 'BEGINORS=RS=";n" for(a=2; a<=NF;) print $1,$(a++)'

          – steeldriver
          4 hours ago










          rkatraga is a new contributor. Be nice, and check out our Code of Conduct.









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