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getting a number from a text file

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Tariq Hammoudeh
Tariq Hammoudeh 2021-12-5
评论： Walter Roberson 2021-12-5
I have txt file with 1 number inside only, nothing else.
is there a way to get that number as a variable so that i can use an if statement on it, more specifically if an inputted number is greater than the number in the txt file.
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Walter Roberson
Walter Roberson 2021-12-5
filename = 'CashReserve.txt');
R = readmatrix(filename);
R = R - 1234.56;
writematrix(R, filename);

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