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   PC User's Guide To Unix

   If you are a PC user, the transition to Unix will be easier for
   you because of the similarities between DOS and Unix.

   One similarity is the hierarchical file system.  As in DOS, Unix
   provides you with the ability to create directories so that you
   can organize your file system as you prefer.  However, since Unix
   is a multi-user system, you will only have permission to create,
   modify, and delete files in the part of the file "tree" allocated
   to you.  You can move around in the entire file system, for the
   most part, looking at and even copying files that are accessible,
   but you can only write files in your own area.

   File names on the HP-Unix system can typically be much longer
   than under DOS.  The maximum length for file names is 255
   characters.  File extensions can be longer than three characters;
   in fact, you can include more than one period (.) in a filename
   (for example, car.engine.block).  Path names (complete file name
   and all directories associated with it) can not be longer than
   1,023 characters.

   Another similarity is in the command names; many basic Unix
   commands will be familiar to the DOS user.  You will notice that
   a number of Unix commands are only two letters, contributing to
   the reputation that Unix is too cryptic.  Once you've become
   accustomed to these terse commands, however, you will probably
   appreciate the few keystrokes required.  Also, if you prefer
   names for commands other than what is provided by default, Unix
   systems provide the capability to ''alias'' a command (including
   your favorite options) to any name you prefer.  The information
   on how to create command aliases is found online by typing man
   ksh (for the Korn shell) or man csh (for the C shell).

   A DOS/Unix table of commands is shown below. See the online man
   page for documentation on each Unix command by typing man command
   once you are logged on to any Unix system.

   DOS Command            Unix Command       Meaning
   =============================================================
   cd pathname or chdir   cd pathname        Change directory to
                                             pathname

   copy                   cp                 Make a copy of a file

   cls                    clear              Clear the screen

   del or erase           rm                 Delete (remove) a file

   dir                    ls                 List the contents of current
                                             directory

   md or mkdir            mkdir              Make a new directory

                                                              PAGE 2

   ren or rename          mv                 Rename a file (or move it
                                             in Unix)

   rd or rmdir            rmdir              Remove a directory

   type                   cat                Display file on screen

   type file | more       more file          Display file  a screenful at
                                             a time

   \                      /                  Separator in a pathname to
                                             a file or directory

   (Copied by permission from the University of Virginia's Academic
   Computing Center Academic Computing Newsletter, June-August 1991
   issue, article by Dee Irwin.)