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Class 6 --More About HTML
and
--Finding Information on the Web
If you want information about a term used in this course, say World
Wide Web, you can probably find out about it by using Google's
dictionary by typing
define World Wide Web
in a Google search window, or you could try the more specialized
The Free On-line Dictionary of
Computing.
UNIX "remembers" the commands that you enter in a terminal window.
In fact, UNIX maintains a list of your most recent command lines
(that is, the command and all its arguments). To recall a whole
command line, just type an exclamation mark followed by the first
few letters of a command used earlier and then press Return; UNIX
will complete the given string of letters to the most recently used
command that
matches the given string, and will return the corresponding command line.
Thus, if you have recently typed
latex extremely-long-file-name, you can now type
!lat or !la and press Return, and the
command will be repeated. Note, however, that !l does not work.
This business of completing the first few letters of a command line
and then executing the command at once is a bit dangerous.
After all, you might forget what you last did with the command.
For example, you might
have typed latex extremely-long-file-name, but then
typed latex some-other-file-name
more recently. Then you might be surprised by having
latex some-other-file-name executed, so it is safer to
use the up arrow key to get back to commands that you have used
recently. We take this up in a later class.
If you are using the UNIX tc-shell, tcsh, then you
can use command and filename completion. Type the first few
letters of a command or filename and then press the TAB key.
The shell will complete the command or filename if there is only
one match. Otherwise, it will go as far along the matching
completions as it can before getting to an ambiguity before it
stops and beeps to get some help from you.
Again, if you are using the tc-shell, you can also use the command
cd - to switch between your present working directory
and the previous one. Repeating the command cd - will
take switch you back to the directory that you just left.
- Learn More About HTML
- Searching for Information on the Web
/ Math on the Web /
Projects /
Email:
Martin L. Karel
