I am trying to write a Korne Shell Script wherein we have to sort
files according to their extensions(for eg. 1.sh, 5.sh, 9.sh together;
4.csh, 120.csh, 6.csh together and 7.ksh, 2.ksh, 59.ksh together) and
move them to their respective directories viz. sh, csh and ksh...
I think, Regular Expressions can be used here for sorting.