The Databar System at DTU - G-Bar Wiki - DTU

6 The G-Bar 15
documents and even more nested folders. The structures may, for example,
look something like the sketch in Figure 3 on the facing page, which shows
how a user (here s001234) might have his or her home folder placed in the
global structure of the databar system.
Immediately after logging in, you will be in your own home folder, which
is named according to your individual User ID. The user has write access to
his or her own home folder, and thus can place documents and other folders
in it.
In Figure 3 on the preceding page you see an example where the user
s001234 has placed two documents (dok1 and dok2) in the home folder plus
one folder (bib.no.1/), and that folder contains two more documents (brev
and gml.brev).
6.5.2 UNIX commands
As mentioned before, in UNIX your work on a project can be either graphic or
command oriented. The big advantage of the command oriented use is that it is
much faster as soon as you get some practice in it. UNIX commands are keyed
in at a terminal window (see the section 6.1.2).
UNIX commands are generally written in the following syntax:
command 〈parameter〉 〈filename(s)〉
where the parameter “filename(s)” could also be “foldername”. File names can
include one or more joker characters or wild cards. Two joker characters that are
good to know are * which can stand for any other character or any sequence of
characters, and ? which can stand for a single character (note that the words
“document” and “file” mean the same thing. Sometimes we denote them as
documents, and sometimes as files.)
An example of the ls-command for listing files is
hald(s001234) $ ls -F *tex
which produces a list of all files in a folder the names of which end ‘tex’. The
parameter ‘-F’ means that you want to see the file type included in the list.
Note: Even if UNIX is very flexible with respect to file and folder names, you
should avoid using blank spaces, slashes (/) and other special characters in
your file and folder names.
The most important UNIX commands You can go a long way in command
oriented UNIX if you know the commands listed in table 2. These commands