Finding Duplicate string values in two cell array 22124x1

I have a cell 22124x1 and it contain duplicate Values, I want to know how many times these values duplicate and their index

first cell contain these values Datacell=

'221853_s_at'
  '221971_x_at'
  '221971_x_at'
  '221971_x_at'
  '221971_x_at'
  '222031_at'
  '222031_at'
  '31637_s_at'
  '37796_at'
  '38340_at'
  '39854_r_at'
  '53202_at'
  '53202_at'
  '60528_at'
  '60528_at'
  '90610_at'
  '90610_at'

symbol cell:

'OR1D4 '
  ' OR1D5'
  ' HLA-DRB4 '
  ' HLA-DRB5 '
  ' LOC100133661 '
  ' LOC100294036'
  'UTP14A '
  ' UTP14C'
  'GTF2H2 '
 'ZNF324B '
  ' LOC644504'
  'JMJD7 '
 'ZNF324B '
  ' JMJD7-PLA2G4B'
  'OR2A20P '
  ' OR2A5 '
  ' OR2A9P'
  'ZNF324B '
  ' ZNF584'
  'WHAMM '
  ' WHAMML1 '
'LOC100290658 '
  ' WHAMML2'
  'NR1D1 '
  ' THRA'
  'C7orf25 '
  ' PRR5 '
  ' PRR5-ARHGAP8'
  'LOC100290658 '
  'C7orf25 '
  ' SAP25'
  'HIP1R '
  ' LOC100294412'
  Any help will be highly appreciated

[Chuck Olosky]

Added (2) additional lines to get names and indices:

function [dupNames, dupNdxs] = getDuplicates(aList) % find duplicate entries in the list of names

    [uniqueList,~,uniqueNdx] = unique(aList);
    N = histc(uniqueNdx,1:numel(uniqueList));
    dupNames = uniqueList(N>1);
    dupNdxs = arrayfun(@(x) find(uniqueNdx==x), find(N>1), ...
        'UniformOutput',false);

end

Answer 1

[Jos (10584)]

Let C be your cell array of strings, then

[UniqueC,~,k] = unique(C) 
N = histc(k,1:numel(UniqueC))

will give you the unique elements in UniqueC and their frequency in N

[Ansam Al-Sabti]

Thanks. But It does not give me their index unfortuantely

[Sulaymon Eshkabilov]

The code given by Chuck Olosky gives the duplicate string names and indexes:

...
dupNames = uniqueList(N>1);  % Names
    dupNdxs = arrayfun(@(x) find(uniqueNdx==x), find(N>1),'UniformOutput',false); % Indexes