How to delete spaces and '[ ', ']' characters from all data array string cells?

I need to remove the spaces and '[', ']' characters from the cells of a data array, I have try with the cellfun function and with:

 a(a(1,1)== '[')='' %%where 'a' is the matrix, this case only for the first    cell and '[' character

But is not working, How could be done?

Thank you in advance,

Answer 1

[Jan]

Posting some example data would reduce the need to guess, what you exactly want.

CStr = {' This contains spaces ', 'This has some [ and ]'};
CStr = strrep(CStr, ' ', '');
CStr = strrep(CStr, '[', '');
CStr = strrep(CStr, ']', '');

Answer 2

[Azzi Abdelmalek]

a={'',1 ,[],'22'}
a(cellfun('isempty',a))=[]