I have many files in a directory, and I want to remove all but one of the files that have the same prefix. For example, I have the files with the pattern
filename.__<random_string>.pdf, (filename can be any string of some length)
foo.__.pdf foo.__resume.pdf foo.__name.pdf bar.__.pdf bar.__resume.pdf bar.__name.pdf
Now from them I only want one of the three files which have the same prefix, i.e, I only want either of the first three files and either one of the last three. For example, the directory should contain,
Answer with any of the scripting language or shell is accepted.