MATLAB: How to have function mkdir read a variable

foldersMATLABmkdir

Can you mass produce sub folders in a parent folder using 'mkdir'and a variable? Can't figure out how have mkdir function read a variable.
Say we try to mass produce folders titled the following numbers:
>> x = [222990, 222991, 222992, 222993, 222994, 222995]
mkdir parentFolder x (doesn't work, just produces a single folder titled x)
mkdir parentFolder "x" (doesn't work, same issue)
mkdir parentFolder 'x' (doesn't work, same issue)
mkdir parentFolder [x] (doesn't work, same issue)
mkdir parentFolder (x) (doesn't work, same issue)
mkdir parentFolder ['x'] (doesn't work, same issue)
mkdir parentFolder ["x"] (doesn't work, same issue)

Best Answer

There is another syntactic form for calling functions. 
mkdir newfolder
is the same as
mkdir('newfolder')
Since you want to manipulate the folder name, you need to use the second form of the function call, along with string manipulation. There's a second problem. mkdir, unlike many other matlab functions, does not work in a vectorised form. In other words, a single call to mkdir can only create a single folder. So to make one folder per list item, you will need a for loop. Therefore you want something like this:
for fileNum = x
mkdir('parentFolder', ['prefix_' num2str(fileNum)])
end
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