I have a file in tha there are 4 fields,in some rows already exsisting 4 fields are present again, I need to eleminate those lines. example:1.CB N CA HN 2.N CB CA HN these 2 lines are same accroding to me, I need only one line to be present database finally. 1.In my database there is no line that is repeated again with all fileds same. example lines in adatabase are: CB N CA HB1 CB N CA HB2

In reply to to avoid redundacy in a file by Anonymous Monk

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