How to get drive name?

Question

Ethan Goldstein 2020-5-8

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https://ww2.mathworks.cn/matlabcentral/answers/523891-how-to-get-drive-name

编辑： Eivind Hennestad 2022-11-25

I am trying to get the drive name, not just the drive letter. For example, I have my 'C' drive and it is called 'OSDisk'. Given I know the drive I want to find the name of ('C'), what function should I call to get the name 'OSDisk'?

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Answer 1

per isakson 2020-5-8

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编辑：per isakson 2020-5-8

在 MATLAB Online 中打开

On Windows this function works with my local drives

>> DriveName( 'C' )
ans =
    'OSDisk'
>> DriveName( 'D' )
ans =
    'DATA'
>> 

where

function    drive_name = DriveName( drive_letter ) 
    cmd_str = sprintf( 'dir %s:\\zzzzzz', drive_letter );
    [~,msg] = system( cmd_str );
    cac = strsplit( msg, '\n' );
    has = contains( cac, 'Volume in drive');
    drive_name = regexp( cac{has}, '(?<= is ).+$', 'match', 'once' );
end

I'm sure there are more robust solutions, see e.g. GetVolumeInformationA function

A bit better

function    drive_name = DriveName( drive_letter ) 
    cmd_str = sprintf( 'vol %s:', drive_letter );
    [~,msg] = system( cmd_str );
    cac = strsplit( msg, '\n' );
    drive_name = regexp( cac{1}, '(?<= is ).+$', 'match', 'once' );
end

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per isakson 2020-5-8

在 MATLAB Online 中打开

This is the most universal I can think of

function    drive_name = DriveName( drive_letter ) 
    if ismac
        % Code to run on Mac platform
    elseif isunix
        % Code to run on Linux platform
    elseif ispc
        % Code to run on Windows platform
    else
        disp('Platform not supported')
    end
end