How to delete data from text file?

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Arun Badigannavar
Arun Badigannavar le 11 Mai 2016
Réponse apportée : Walter Roberson le 11 Mai 2016
[71.7 611.7 251.7 431.7] is tab delimited data on 14th line, second data, I want to delete 431.7, How to do it?
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Arun Badigannavar
Arun Badigannavar le 11 Mai 2016
Data1 [71.7 611.7 251.7 431.7] Description, all these three data are tab delimited, in the second tab I have data, which I want to alter

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Walter Roberson
Walter Roberson le 11 Mai 2016
You need to read in the data, make the change, and write it out again, preferably to a different file (so that if there is a problem you do not lose the original.)
The only circumstance under which you can alter a text file "in place" is if the replacement is exactly the same size as the original.

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