Extracing the part of the string from cell array

I have a cell array a = {'abc__first__element' ; 'def__second__element'; ghi__third__element'}

I want to extract the string after first '__'

My final answer should be a = {'first__element'; 'second__element'; 'third__element'}

How can do this?

Thanks a lot

Answer 1

[Paolo]

 regexp(a,'(?<=__)(.*)','match')

[Stephen23]

+1 nice and simple. To avoided nested cell arrays in the output use the 'once' option:

regexp(a,'(?<=__)(.*)','match','once')

[Paolo]

Good point! Would +1 your comment if that was a thing.