Reading first column in a file and creating new files…

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This topic contains 1 reply, has 2 voices, and was last updated by  GWILouisaxwzkla 10 years, 3 months ago.

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  • #2220

    GarnetHuynh
    Member

    Hi,

    Could you please assist me with the ‘C’ code for the following :-

    I have a file called Test.txt.

    I) Test.txt



    A,BC,DE,HI,00,11
    A,DE,HI,JK,23,24
    A,XX,YY,YU,40,95
    B,CD,EF,GH,11,22
    B,JJ,KK,JU,45,89
    C,DE,FG,HI,22,33
    C,EF,GH,IJ,77,88
    D,EF,GH,IJ,33,44
    D,FG,HI,JK,44,55

    Need to read the first column of the file and create files such that for each change in the first column, a new file is created with the filename as first column.ref.

    That is for above file, 4 Files are created as each time the first column changes, a new file is created. The 4 files generated are as follows:-

    II)

    1) A.ref



    BC,DE,HI,00,11
    DE,HI,JK,23,24
    XX,YY,YU,40,95

    2) B.ref



    CD,EF,GH,11,22
    JJ,KK,JU,45,89

    3) C.ref



    DE,FG,HI,22,33
    EF,GH,IJ,77,88

    4) D.ref



    EF,GH,IJ,33,44
    FG,HI,JK,44,55

    Best Regards,
    Marconi.

  • #3601

    This seems to work:

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