How sed can be used to replace multiple patterns within a string for different patterns












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I want to
(1) replace multiple numbers in a line for different values. For example, in the string "uncertainty = { 0.01 , 0.01 }" it should substitute for
string "uncertainty = { 0.2 , 0.2 }".
The problem is that
(2) these lines appear in hundreds of files with different quantities of numbers inside the brackets.
It could be
"uncertainty = { 0.1 , 0.1, 0.1 }", for "uncertainty = { 0.3 , 0.3, 0.3 }" or
"uncertainty = { 0.1 , 0.1, 0.1 , 0.1, 0.1, 0.1}", for
"uncertainty = { 0.3 , 0.3, 0.3 , 0.3, 0.3, 0.3}
and so on, and I have to substitute all of them.



I could not see how sed could be used to do that.









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    I want to
    (1) replace multiple numbers in a line for different values. For example, in the string "uncertainty = { 0.01 , 0.01 }" it should substitute for
    string "uncertainty = { 0.2 , 0.2 }".
    The problem is that
    (2) these lines appear in hundreds of files with different quantities of numbers inside the brackets.
    It could be
    "uncertainty = { 0.1 , 0.1, 0.1 }", for "uncertainty = { 0.3 , 0.3, 0.3 }" or
    "uncertainty = { 0.1 , 0.1, 0.1 , 0.1, 0.1, 0.1}", for
    "uncertainty = { 0.3 , 0.3, 0.3 , 0.3, 0.3, 0.3}
    and so on, and I have to substitute all of them.



    I could not see how sed could be used to do that.









    share







    New contributor




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























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      I want to
      (1) replace multiple numbers in a line for different values. For example, in the string "uncertainty = { 0.01 , 0.01 }" it should substitute for
      string "uncertainty = { 0.2 , 0.2 }".
      The problem is that
      (2) these lines appear in hundreds of files with different quantities of numbers inside the brackets.
      It could be
      "uncertainty = { 0.1 , 0.1, 0.1 }", for "uncertainty = { 0.3 , 0.3, 0.3 }" or
      "uncertainty = { 0.1 , 0.1, 0.1 , 0.1, 0.1, 0.1}", for
      "uncertainty = { 0.3 , 0.3, 0.3 , 0.3, 0.3, 0.3}
      and so on, and I have to substitute all of them.



      I could not see how sed could be used to do that.









      share







      New contributor




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












      I want to
      (1) replace multiple numbers in a line for different values. For example, in the string "uncertainty = { 0.01 , 0.01 }" it should substitute for
      string "uncertainty = { 0.2 , 0.2 }".
      The problem is that
      (2) these lines appear in hundreds of files with different quantities of numbers inside the brackets.
      It could be
      "uncertainty = { 0.1 , 0.1, 0.1 }", for "uncertainty = { 0.3 , 0.3, 0.3 }" or
      "uncertainty = { 0.1 , 0.1, 0.1 , 0.1, 0.1, 0.1}", for
      "uncertainty = { 0.3 , 0.3, 0.3 , 0.3, 0.3, 0.3}
      and so on, and I have to substitute all of them.



      I could not see how sed could be used to do that.







      sed





      share







      New contributor




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










      share







      New contributor




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








      share



      share






      New contributor




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









      asked 6 mins ago









      Edjard MotaEdjard Mota

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      Edjard Mota is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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      New contributor





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






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      Check out our Code of Conduct.






















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