Logged in as an ordinary user, look around and try out some commands that will access the sources of help and information within FreeBSD.
Here are some commands and what they do:
idTells you who you are!
pwdShows you where you are—the current working directory.
lsLists the files in the current directory.
ls -FLists the files in the current directory with a
	    * after executables, a
	    / after directories, and an
	    @ after symbolic links.
ls -lLists the files in long format—size, date, permissions.
ls -aLists hidden “dot” files with the others.
	    If you are root, the “dot” files show up
	    without the -a switch.
cdChanges directories.  cd
	    .. backs up one level;
	    note the space after cd.  cd
	    /usr/local goes there.
	    cd ~ goes to the
	    home directory of the person logged in—e.g.,
	    /usr/home/jack.  Try cd
	    /cdrom, and then
	    ls, to find out if your CDROM is
	    mounted and working.
less
	    filenameLets you look at a file (named
	    filename) without changing it.
	    Try less /etc/fstab.
	    Type q to quit.
cat
	    filenameDisplays filename on
	    screen.  If it is too long and you can see only the end of
	    it, press ScrollLock and use the
	    up-arrow to move backward; you can use
	    ScrollLock with manual pages too.  Press
	    ScrollLock again to quit scrolling.  You
	    might want to try cat on some of the
	    dot files in your home directory—cat
	      .cshrc, cat
	      .login, cat
	      .profile.
You will notice aliases in .cshrc for
      some of the ls commands (they are very
      convenient).  You can create other aliases by editing
      .cshrc.  You can make these aliases
      available to all users on the system by putting them in the
      system-wide csh configuration file,
      /etc/csh.cshrc.
All FreeBSD documents are available for download at https://download.freebsd.org/ftp/doc/
Questions that are not answered by the
    documentation may be
    sent to <freebsd-questions@FreeBSD.org>.
    Send questions about this document to <freebsd-doc@FreeBSD.org>.