=
In your testdir directory, type
<code>compsci-user@tim:~$ ls -l (l for long listing!)</code>
You w... eft group of 3 gives the file permissions for the user that owns the file (or directory) (ee51ab in the...
===Access rights on directories.===
* r allows users to list files in the directory;
* w means that users may delete files from the directory or move fil
ed in an open access area of the file system, and use the **cp** command to copy it to your **testdir**... rst, cd to your testdir directory.
<code>compsci-user@tim: cd ~/testdir</code>
Then at the Linux prompt, type,
<code>compsci-user@tim: cp /vol/examples/tutorial/science.txt . </c... University, you can grab a copy of the file here. Use 'File/Save As..' from the menu bar to save it int
nfinite Trees ======
((lecture notes adapted and used with permission from Kathi Fisler))
===== 1 Mot... the context of any particular problems. Trees are used in many applications in computer science, roboti... est payoff a few moves down the road. Trees are a useful data structure here: each node contains data a... Now that we have force, we need to decide when to use it. We said that we wanted to construct the tree
cess is for pages served from OUTSIDE THE WIKI in users directories. The wiki has similar ability, but... ifferently -Greg
===== Web Access Restriction by user/password =====
This can be used in many ways, the user and password are not related to our system users and passwords, so you can use
rom time to time issues of computer privacy, fair use, or appropriate use of the Computer Science Department computer facilities come up. Any discussion mu... derstanding of the campus regulations on computer use.
====== Campus Computer Regulations ======
To... is here for reference only; for any authoritative use go to the Dean
of the College's website and get t
ems.
- Type the following to connect, replacing USER with your user name. Your user name is likely the first two letters of your first name and your whole last name, all in lower case:\\ ''ssh USER@mote.cs.vassar.edu -p 443''\\ It may take a few
talled on our systems, which are available to all users. However, students are allowed to download and ... n their own home directory, software usually only useful to them personally.
There are a number of ste... licated and beyond the capability of the ordinary user. A number of utilities and tools have been developed for programmers and end-users to simplify these steps.
===make and the Makef
ry. Your home directory has the same name as your user-name, for example, **compsci-user**, and it is where your personal files and subdirectories are saved... at is in your home directory, type
<code>
compsci-user@tim:~$ ls
</code>
The **ls** command ( lowercase... whose names begin with a dot, type
<code>
compsci-user@tim:~$ ls -a
</code>
{{:help:general_linux:lsa.
r particular variables and if they are found will use the values stored. Some are set by the system, ot... only to the current instance of the shell and are used to set short-term working conditions; environmen... erating system you are using. Type
<code>compsci-user@tim:~$ echo $OSTYPE</code>
More examples of environment variables are
* USER (your login name)
* HOME (the path name of you
to the terminal screen.
We have already seen one use of the **cat** command to write the contents of a... * without specifing a file to read
<code>compsci-user@tim:~$ cat</code>
Then type a few words on the ... ommands.
====3.2 Redirecting the Output ====
We use the > symbol to redirect the output of a command.... containing a list of fruit, type
<code>compsci-user@tim:~$ cat > list1</code>
Then type in the name
ast spring:
<file>
We now have a chat server. It uses the open protocol XMPP aka
Jabber. It can do cha... and more
secure! Messages to other cs.vassar.edu users go from the user to our
server to the other user.
So why all the confusion? Well...
There is a lot of variation in t
the PuTTY Utility **
SSH keys are what you will use to establish an encrypted connection over the net... k.
**Section I. Install PuTTY**
To create and use SSH keys on a device running Microsoft Windows, y... and PuTTYgen on that device. PuTTY is the utility used to connect your device to a remote desktop or server through SSH, and PuTTYgen is the utility used to create SSH keys. On the PuTTY website, downlo
=====Linux Tutorial Six=====
====Other useful UNIX commands====
===quota===
All students are allocated... ck your current quota and how much of it you have used, type
<code>compsci-user@tim:~$ quota -v</code>
===df===
The df command reports on the space left ... ce is left on the fileserver, type
<code>compsci-user@tim:~$ df .</code>
===du===
The du command out
k script
===== Description =====
This script is used to look at information from file names created by the submit script used by the digital drop box. It assumes English mon...
===== Initial Setup =====
In order to use this, you need to add a .supertab file in the cou... irectory. This file will allow certain people to use the command super. If one already exists, you ca
hough.
* finger print reader - haven't tried to use, have not investigated
* cellular EDGE modem - ... nd/resume
* touch screen mostly works, I rarely use the screen, but was able to get it working well w... after two decades of explaining that I have many uses for my wearable which don't require a full time ... on it a bit to better work with my glasses and my useage patterns. One idea is to try to make an alter