Replacing just the first occurence of a character in a line

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I have a line with thousands of lines like this:



"100K";"0.00001";"10";"0.01"]
"101K";"0.0001";"100";"0.1"]
"102K";"1";"1000";"1"]
"102K";"1";"1000";"1"]
"103K";"0.01";"10000";"10"]
"104K";"0.1";"100000";"100"]
"105K";"1";"1000000";"1000"]
"109K";"0.000001";"1";"1"]
"120K";"0.000012";"12";"12"]


I want to replace the first occurrence of ; in a line with :[



Making these lines equal to



"100K":["0.00001";"10";"0.01"]
"101K":["0.0001";"100";"0.1"]
"102K":["1";"1000";"1"]
"102K":["1";"1000";"1"]
"103K":["0.01";"10000";"10"]
"104K":["0.1";"100000";"100"]
"105K":["1";"1000000";"1000"]
"109K":["0.000001";"1";"1"]
"120K":["0.000012";"12";"12"]


how do I do that with sed or other unix command?






awk sed







share|improve this question

























    up vote
    2
    down vote

    favorite












    I have a line with thousands of lines like this:



    "100K";"0.00001";"10";"0.01"]
    "101K";"0.0001";"100";"0.1"]
    "102K";"1";"1000";"1"]
    "102K";"1";"1000";"1"]
    "103K";"0.01";"10000";"10"]
    "104K";"0.1";"100000";"100"]
    "105K";"1";"1000000";"1000"]
    "109K";"0.000001";"1";"1"]
    "120K";"0.000012";"12";"12"]


    I want to replace the first occurrence of ; in a line with :[



    Making these lines equal to



    "100K":["0.00001";"10";"0.01"]
    "101K":["0.0001";"100";"0.1"]
    "102K":["1";"1000";"1"]
    "102K":["1";"1000";"1"]
    "103K":["0.01";"10000";"10"]
    "104K":["0.1";"100000";"100"]
    "105K":["1";"1000000";"1000"]
    "109K":["0.000001";"1";"1"]
    "120K":["0.000012";"12";"12"]


    how do I do that with sed or other unix command?






    awk sed







    share|improve this question























      up vote
      2
      down vote

      favorite









      up vote
      2
      down vote

      favorite











      I have a line with thousands of lines like this:



      "100K";"0.00001";"10";"0.01"]
      "101K";"0.0001";"100";"0.1"]
      "102K";"1";"1000";"1"]
      "102K";"1";"1000";"1"]
      "103K";"0.01";"10000";"10"]
      "104K";"0.1";"100000";"100"]
      "105K";"1";"1000000";"1000"]
      "109K";"0.000001";"1";"1"]
      "120K";"0.000012";"12";"12"]


      I want to replace the first occurrence of ; in a line with :[



      Making these lines equal to



      "100K":["0.00001";"10";"0.01"]
      "101K":["0.0001";"100";"0.1"]
      "102K":["1";"1000";"1"]
      "102K":["1";"1000";"1"]
      "103K":["0.01";"10000";"10"]
      "104K":["0.1";"100000";"100"]
      "105K":["1";"1000000";"1000"]
      "109K":["0.000001";"1";"1"]
      "120K":["0.000012";"12";"12"]


      how do I do that with sed or other unix command?






      awk sed







      share|improve this question













      I have a line with thousands of lines like this:



      "100K";"0.00001";"10";"0.01"]
      "101K";"0.0001";"100";"0.1"]
      "102K";"1";"1000";"1"]
      "102K";"1";"1000";"1"]
      "103K";"0.01";"10000";"10"]
      "104K";"0.1";"100000";"100"]
      "105K";"1";"1000000";"1000"]
      "109K";"0.000001";"1";"1"]
      "120K";"0.000012";"12";"12"]


      I want to replace the first occurrence of ; in a line with :[



      Making these lines equal to



      "100K":["0.00001";"10";"0.01"]
      "101K":["0.0001";"100";"0.1"]
      "102K":["1";"1000";"1"]
      "102K":["1";"1000";"1"]
      "103K":["0.01";"10000";"10"]
      "104K":["0.1";"100000";"100"]
      "105K":["1";"1000000";"1000"]
      "109K":["0.000001";"1";"1"]
      "120K":["0.000012";"12";"12"]


      how do I do that with sed or other unix command?






      awk sed




      awk sed






      share|improve this question













      share|improve this question











      share|improve this question




      share|improve this question










      asked 2 hours ago









      SpaceDog

      1,648122851




      1,648122851




















          1 Answer
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          sed 's/;/:[/' file

          "100K":["0.00001";"10";"0.01"]
          "101K":["0.0001";"100";"0.1"]
          "102K":["1";"1000";"1"]
          "102K":["1";"1000";"1"]
          "103K":["0.01";"10000";"10"]
          "104K":["0.1";"100000";"100"]
          "105K":["1";"1000000";"1000"]
          "109K":["0.000001";"1";"1"]
          "120K":["0.000012";"12";"12"]





          share|improve this answer
















          • 1




            if you add g to the command above like sed 's/;/:[/g' it will apply global (g stands for global)change meaning it will change every occurrence
            – Goro
            2 hours ago







          • 1




            if you add -i, you do it in one go.
            – Rui F Ribeiro
            2 hours ago










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          up vote
          7
          down vote



          accepted










          sed 's/;/:[/' file

          "100K":["0.00001";"10";"0.01"]
          "101K":["0.0001";"100";"0.1"]
          "102K":["1";"1000";"1"]
          "102K":["1";"1000";"1"]
          "103K":["0.01";"10000";"10"]
          "104K":["0.1";"100000";"100"]
          "105K":["1";"1000000";"1000"]
          "109K":["0.000001";"1";"1"]
          "120K":["0.000012";"12";"12"]





          share|improve this answer
















          • 1




            if you add g to the command above like sed 's/;/:[/g' it will apply global (g stands for global)change meaning it will change every occurrence
            – Goro
            2 hours ago







          • 1




            if you add -i, you do it in one go.
            – Rui F Ribeiro
            2 hours ago














          up vote
          7
          down vote



          accepted










          sed 's/;/:[/' file

          "100K":["0.00001";"10";"0.01"]
          "101K":["0.0001";"100";"0.1"]
          "102K":["1";"1000";"1"]
          "102K":["1";"1000";"1"]
          "103K":["0.01";"10000";"10"]
          "104K":["0.1";"100000";"100"]
          "105K":["1";"1000000";"1000"]
          "109K":["0.000001";"1";"1"]
          "120K":["0.000012";"12";"12"]





          share|improve this answer
















          • 1




            if you add g to the command above like sed 's/;/:[/g' it will apply global (g stands for global)change meaning it will change every occurrence
            – Goro
            2 hours ago







          • 1




            if you add -i, you do it in one go.
            – Rui F Ribeiro
            2 hours ago












          up vote
          7
          down vote



          accepted







          up vote
          7
          down vote



          accepted






          sed 's/;/:[/' file

          "100K":["0.00001";"10";"0.01"]
          "101K":["0.0001";"100";"0.1"]
          "102K":["1";"1000";"1"]
          "102K":["1";"1000";"1"]
          "103K":["0.01";"10000";"10"]
          "104K":["0.1";"100000";"100"]
          "105K":["1";"1000000";"1000"]
          "109K":["0.000001";"1";"1"]
          "120K":["0.000012";"12";"12"]





          share|improve this answer












          sed 's/;/:[/' file

          "100K":["0.00001";"10";"0.01"]
          "101K":["0.0001";"100";"0.1"]
          "102K":["1";"1000";"1"]
          "102K":["1";"1000";"1"]
          "103K":["0.01";"10000";"10"]
          "104K":["0.1";"100000";"100"]
          "105K":["1";"1000000";"1000"]
          "109K":["0.000001";"1";"1"]
          "120K":["0.000012";"12";"12"]






          share|improve this answer












          share|improve this answer



          share|improve this answer










          answered 2 hours ago









          Goro

          7,89653574




          7,89653574







          • 1




            if you add g to the command above like sed 's/;/:[/g' it will apply global (g stands for global)change meaning it will change every occurrence
            – Goro
            2 hours ago







          • 1




            if you add -i, you do it in one go.
            – Rui F Ribeiro
            2 hours ago












          • 1




            if you add g to the command above like sed 's/;/:[/g' it will apply global (g stands for global)change meaning it will change every occurrence
            – Goro
            2 hours ago







          • 1




            if you add -i, you do it in one go.
            – Rui F Ribeiro
            2 hours ago







          1




          1




          if you add g to the command above like sed 's/;/:[/g' it will apply global (g stands for global)change meaning it will change every occurrence
          – Goro
          2 hours ago





          if you add g to the command above like sed 's/;/:[/g' it will apply global (g stands for global)change meaning it will change every occurrence
          – Goro
          2 hours ago





          1




          1




          if you add -i, you do it in one go.
          – Rui F Ribeiro
          2 hours ago




          if you add -i, you do it in one go.
          – Rui F Ribeiro
          2 hours ago

















           

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