How to join two files using two columns in unix

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I have file a and file lookup and the structure is below.



vi a.txt

empid|ename|sal_grade|MANAGER_ID
1|raj|A|202
2|MAN|B|203
3|JOS|C|204

vi lookup.txt

Grade|sal|manager_id
A|$100000|202
A|$1000|099
B|$1000000|203
B|$100|011

Output:
1|raj|A|202
2|MAN|B|203

command:

awk 'BEGIN " NR==FNRa[$1];next $3 in aprint $0' lookup.txt a.txt >matched.txt


Here in the both files grade and manager_id is common and i want to join a.txt with lookup.txt on grade and manager_id and get the data out from a.txt where it got a match from lookup.txt .I tried with below command but it will join only on column i.e on grade column but i need to join on both grade and manager id column .



Thank's in advance.










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    up vote
    0
    down vote

    favorite












    I have file a and file lookup and the structure is below.



    vi a.txt

    empid|ename|sal_grade|MANAGER_ID
    1|raj|A|202
    2|MAN|B|203
    3|JOS|C|204

    vi lookup.txt

    Grade|sal|manager_id
    A|$100000|202
    A|$1000|099
    B|$1000000|203
    B|$100|011

    Output:
    1|raj|A|202
    2|MAN|B|203

    command:

    awk 'BEGIN " NR==FNRa[$1];next $3 in aprint $0' lookup.txt a.txt >matched.txt


    Here in the both files grade and manager_id is common and i want to join a.txt with lookup.txt on grade and manager_id and get the data out from a.txt where it got a match from lookup.txt .I tried with below command but it will join only on column i.e on grade column but i need to join on both grade and manager id column .



    Thank's in advance.










    share|improve this question























      up vote
      0
      down vote

      favorite









      up vote
      0
      down vote

      favorite











      I have file a and file lookup and the structure is below.



      vi a.txt

      empid|ename|sal_grade|MANAGER_ID
      1|raj|A|202
      2|MAN|B|203
      3|JOS|C|204

      vi lookup.txt

      Grade|sal|manager_id
      A|$100000|202
      A|$1000|099
      B|$1000000|203
      B|$100|011

      Output:
      1|raj|A|202
      2|MAN|B|203

      command:

      awk 'BEGIN " NR==FNRa[$1];next $3 in aprint $0' lookup.txt a.txt >matched.txt


      Here in the both files grade and manager_id is common and i want to join a.txt with lookup.txt on grade and manager_id and get the data out from a.txt where it got a match from lookup.txt .I tried with below command but it will join only on column i.e on grade column but i need to join on both grade and manager id column .



      Thank's in advance.










      share|improve this question













      I have file a and file lookup and the structure is below.



      vi a.txt

      empid|ename|sal_grade|MANAGER_ID
      1|raj|A|202
      2|MAN|B|203
      3|JOS|C|204

      vi lookup.txt

      Grade|sal|manager_id
      A|$100000|202
      A|$1000|099
      B|$1000000|203
      B|$100|011

      Output:
      1|raj|A|202
      2|MAN|B|203

      command:

      awk 'BEGIN " NR==FNRa[$1];next $3 in aprint $0' lookup.txt a.txt >matched.txt


      Here in the both files grade and manager_id is common and i want to join a.txt with lookup.txt on grade and manager_id and get the data out from a.txt where it got a match from lookup.txt .I tried with below command but it will join only on column i.e on grade column but i need to join on both grade and manager id column .



      Thank's in advance.







      awk gawk






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      asked Sep 27 at 18:28









      Rak kundra

      149111




      149111




















          1 Answer
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          If you need a combined key, build a combined key.



          awk '
          BEGIN "
          NR==FNR a[$1 "-" $3]; next
          ($3 "-" $4) in a print $0
          ' lookup.txt a.txt > matched.txt


          You can use "-" as a separator, or another string, or nothing at all. With the data from your example it would work without a separator.






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          • Thank you for the reply . It works for me .
            – Rak kundra
            Sep 27 at 19:18










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          1 Answer
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          active

          oldest

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          1 Answer
          1






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          up vote
          0
          down vote



          accepted










          If you need a combined key, build a combined key.



          awk '
          BEGIN "
          NR==FNR a[$1 "-" $3]; next
          ($3 "-" $4) in a print $0
          ' lookup.txt a.txt > matched.txt


          You can use "-" as a separator, or another string, or nothing at all. With the data from your example it would work without a separator.






          share|improve this answer




















          • Thank you for the reply . It works for me .
            – Rak kundra
            Sep 27 at 19:18














          up vote
          0
          down vote



          accepted










          If you need a combined key, build a combined key.



          awk '
          BEGIN "
          NR==FNR a[$1 "-" $3]; next
          ($3 "-" $4) in a print $0
          ' lookup.txt a.txt > matched.txt


          You can use "-" as a separator, or another string, or nothing at all. With the data from your example it would work without a separator.






          share|improve this answer




















          • Thank you for the reply . It works for me .
            – Rak kundra
            Sep 27 at 19:18












          up vote
          0
          down vote



          accepted







          up vote
          0
          down vote



          accepted






          If you need a combined key, build a combined key.



          awk '
          BEGIN "
          NR==FNR a[$1 "-" $3]; next
          ($3 "-" $4) in a print $0
          ' lookup.txt a.txt > matched.txt


          You can use "-" as a separator, or another string, or nothing at all. With the data from your example it would work without a separator.






          share|improve this answer












          If you need a combined key, build a combined key.



          awk '
          BEGIN "
          NR==FNR a[$1 "-" $3]; next
          ($3 "-" $4) in a print $0
          ' lookup.txt a.txt > matched.txt


          You can use "-" as a separator, or another string, or nothing at all. With the data from your example it would work without a separator.







          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered Sep 27 at 18:35









          RalfFriedl

          4,2481725




          4,2481725











          • Thank you for the reply . It works for me .
            – Rak kundra
            Sep 27 at 19:18
















          • Thank you for the reply . It works for me .
            – Rak kundra
            Sep 27 at 19:18















          Thank you for the reply . It works for me .
          – Rak kundra
          Sep 27 at 19:18




          Thank you for the reply . It works for me .
          – Rak kundra
          Sep 27 at 19:18

















           

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