how to select range of files

prompt1 = '\nplease enter the starting serial number\n';
first_SN = input(prompt1);
prompt2 = '\nplease enter the ending serial number\n';
ending_SN = input(prompt2);
prompt3 = '\nplease enter the step size\n';
step = input(prompt3);
temp_directory = dir;
size(temp_directory) 
class(first_SN)
b = 1;
a=first_SN;
while  a <= ending_SN %%%builds list of serial numbers
    SN{b}= num2str(a);
    b = b+1;
    a = a+step;
end
for c = 3:size(temp_directory)   
    temp_directory(c).name
    isempty(strfind(SN, temp_directory(c).name))           % at this point is just copying the files from the temp dir
    if  isempty(strfind(SN, temp_directory(c).name)) ~= 1  % how my i have it just select the range of SN numbers
        serial_number_folders(c).name = temp_directory(c).name;
    end
end   
end

[Fifteen12]

What is your question? What is the purpose of your code?

[Ihaveaquest]

how may i have it just select the range of SN numbers if i have a list of SN00001 - SN10000

how can i set a range of SN50 to SN100

Answer 1

[Image Analyst]

You need to parse your filename to get the serial number (string) into a number (double). Then you can use an if inside your for loop to skip numbers outside the range

for k = 1 : numFiles
    thisFileName = 
    serialNumber = ParseFilename(thisFileName);
    if serialNumber < minSerialNumber || serialNumber > maxSerialNumber
        continue; % Skip this file.
    end
    % else process the file.
end

[Ihaveaquest]

Hi how do i parse the file ?? is parse a fuction of matlab ??

[Ihaveaquest]

splitstr??

[Image Analyst]

Tell me what a typical file name is and tell me what characters in the filename represent the serial number. Or is the serial number inside the file, not a part of it's file name?