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Renaming output files so as not to overwrite when name is duplicated

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Hello Community!
It has been a couple of years since I have coded in MATLAB and I am a bit rusty.
I am currenlty working with data that is being output with the final date on the file. Unfortunately this can lead to duplications occiring. If I remember correctly there is a way to write the code so that it scans the names already in the file folder and would add an additional variable to the name so that it does not overwrite the existing file.
I am thinking it is an if statement that does that? Is that correct or is there a better way to write that?
ex) File in folder is already labelled 202004, would like any additional files that have the same last date to be output as 202004B, etc. Most of the files are uniques but there are a couple where this happens.
Thanks!
  4 Commenti
Stephnie Watson
Stephnie Watson il 23 Dic 2020
Modificato: Rik il 23 Dic 2020
Thanks Rik and Steve I will read up on this one!

Accedi per commentare.

Risposte (2)

Asad (Mehrzad) Khoddam
Asad (Mehrzad) Khoddam il 22 Dic 2020
You can use some code like this:
filename = '202004';
n=0;
if ~isempty(dir(filename))
for n=1:1000
newFile = fprintf('%s_%03d\n',filename,n);
if isempty(dir(newFile))
break;
end
end
end
% save the date on newFile

Steven Lord
Steven Lord il 25 Nov 2023
There is a function named matlab.lang.makeUniqueStrings that may be of use.

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