Because letters and digits have a logical order, you can abbreviate those by specifying ranges of them: [ a-c ] is equal to [ abc ] and [ # ] is equal to [ # ]. Combining these constructs, for example [ a-fynot# ] is completely legal (the last one would match, of course, either of a, b, c, d, e, f, y, n, o, t, #, #, # or
កម្មវិធីបញ្ជា DBKDE40.1 KDE40.1