Replace the first word of every line in a file with the line number












0















If I have a file like this:



foo bar
bar foo
5 foo
bar 5


and I want to change the file to look like this:



1 bar
2 foo
3 foo
4 5


How can I go about doing this?









share







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    0















    If I have a file like this:



    foo bar
    bar foo
    5 foo
    bar 5


    and I want to change the file to look like this:



    1 bar
    2 foo
    3 foo
    4 5


    How can I go about doing this?









    share







    New contributor




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























      0












      0








      0








      If I have a file like this:



      foo bar
      bar foo
      5 foo
      bar 5


      and I want to change the file to look like this:



      1 bar
      2 foo
      3 foo
      4 5


      How can I go about doing this?









      share







      New contributor




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












      If I have a file like this:



      foo bar
      bar foo
      5 foo
      bar 5


      and I want to change the file to look like this:



      1 bar
      2 foo
      3 foo
      4 5


      How can I go about doing this?







      shell-script shell sed





      share







      New contributor




      Comfy 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




      Comfy 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




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









      asked 3 mins ago









      ComfyComfy

      1




      1




      New contributor




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





      New contributor





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






      Comfy 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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