Several operations are available for managing the `desktop' and organizing
jobs, files, and directories. These modules are programmed by K.Vehkalahti.
1 = Creating an index of files to the edit field (INDEX)
2 = Navigating and browsing files and directories (DD)
3 = Searching occurences of text string from files (SEARCH)
4 = Changing the default directory (CD)
5 = Processing of dates, also in Survo data sets (DATE)
6 = Simple calendar functions (CALENDAR)
7 = Searching files from the disks and directories (WHERE)
8 = Copying files by matching two directories (DM)
9 = Browsing directory trees (TREE)
M = Making new directories (MD)
R = Removing a single directory (RD)
D = Removing a directory tree (DELTREE)
N = Useful information on file names and comments
! = Copyright notice and contact information
C = More information on control operations