Electronic Paper
Tuesday 30 March 2004 at 01:14 am First Generation Electronic Paper Device from Sony/Philips.Useful Forensic Tool
Tuesday 30 March 2004 at 12:07 am Australian Defence Department tool called FLAG lets you monitor ports and analyse disk datawhen undertaking forensic examinations of IT equipment. Page includes a link to a bootable Knoppix CD which includes the FLAG toolset.How to Map Everything You Think About
Monday 29 March 2004 at 11:27 pm Lion Kimbro has written about how to keep track of Everything You Think.Domino Installation via Web Interface
Sunday 14 March 2004 at 11:21 pm Create a user and group to own the install (traditionally 'notes' for group and user).Run install script to drop the files into the appropriate place (remember to install as root) via the usual install script.
Once the files are in place run the post install Domino setup script.
On a Unix system with a GUI you should get the java based GUI installer.
If you don't have a GUI but have a client machine with a web browser and java you can run a web based setup.
On the server run
/opt/lotus/bin/http httpsetup
Then point your web browser at the server. The output of the previous command will give you the port number.
O'Reillys Lotus Domino Administration in a Nutshell
Thursday 11 March 2004 at 01:14 am The bulk of Chapter 13 is online - covers Server Tasks and Console CommandsBasic OpenFirmware
Wednesday 10 March 2004 at 11:32 pm Check attached devices (in this case drives)ok> probe-scsi
Use
probe-ide
on a non-scsi machineTo boot from the default device use
ok> boot
To boot from cdrom
ok> boot cdrom
To reset the system
ok> reset
To check current settings
ok> printenv
The two commands to switch to keyboard/screen are:
ok> setenv input-device keyboard
ok> setenv output-device screen
And the two commands for setting the serial console as the input/out are:
ok> setenv input-device ttya
ok> setenv output-device ttya
From the Sun OpenBoot Reference Manual
Rebuild the Directory Catalog
Wednesday 10 March 2004 at 04:01 am The Directory Catalog (dc.nsf) is a cut down version of the full Address Book (names.nsf). It is automatically generated and updated from the Address Book; when the update process breaks down you can force a rebuild -load dircat dc.nsf -r
This is run on the (primary admin) server console.
Alternatively you can goto the Configuration Document for the server in the Admin Tool and use the Clear History button.
Taken from the Notes 6 Admin Guide
Enable root Login
Tuesday 09 March 2004 at 02:31 am Edit /etc/securettys to add extra terminals (other than the console).Note that RedHat has a similar securetty setting.
Note that allowing root login is definitely a bad thing - login as a normal user and use su or sudo instead. On a Tru64 system remember to add the normal user to the appropriate group or you won't be able to su.
Prevent Halt When Keyboard is removed
Tuesday 09 March 2004 at 01:54 am This behaviour can be stopped by editing /etc/default/kbd and changing the value of KEYBOARD_ABORT to disable.Auto Install CPAN Modules
Monday 08 March 2004 at 10:35 pm Handle CPAN module installation -perl -MCPAN -e 'install Bundle::libnet'
Will download and install the libnet perl module in the same way as a debian apt-get install or redhat up2date.
Searching CPAN will give you the appropriate module names.
First time you run it you'll need to answer some simple queries but once its setup it seems to work fine.
You can reconfigure the CPAN settings via
perl -MCPAN -e shell
cpan shell -- CPAN exploration and modules installation (v1.59_54)
ReadLine support available (try 'install Bundle::CPAN')
cpan> o conf init
Far Side Cartoons as Photoshop Contest Fodder
Monday 08 March 2004 at 9:47 pm Check out the Worth1000 Far Side GalleriesHistory of Apples Operating Systems
From Apple DOS to OSX
Useful Active Directory Links
Monday 08 March 2004 at 9:42 pm Some Sample Code from O'Reillys Active Directory CookbookTwo articles on using php and perl to access AD at Developer.com
Sample Code from Realmen Don't Click
Useful Find File Syntax (Because I can never remember . . .)
Saturday 06 March 2004 at 02:21 am From O'Reillys OnLamp Series come two articles on using Unix find - one and two.Useful examples
Find all pdfs and move them into a pdf folder
find . -name "*.pdf" -print | grep -v "^\./pdfs/" | xargs -J X mv X ./pdfs/
Find all files I haven't accessed in 7 days and they're larger than 10Mb in size
find . -atime +7 -size +20480 -print
Friday Links
Saturday 06 March 2004 at 02:07 am Fantastic Windows FreewareArt Rage
Download, install, use an existing image as tracing paper and then cut loose with the mouse.
Joel Spolsky on . . .
How to Run a Beta Test
For a super clean Unix Window Manager to make best use of screen realestate try the tabbed WM called ion
Ion
Useful Aramaic (if you've been following Mel Gibsons latest foray into movies . . .)
Aramaic Phrases
Useful for people with Kids and Wood varnish floors
FunSlides
Edit CSS Within Firefox with a sidebar addin
EditCSS
Useful XP Regedits
XP Registry Edits
HP Utility for USB Drives
Friday 05 March 2004 at 07:13 am Will make any key drive bootable (USB 2.0 only).Legacy Outliners and Games
Thursday 04 March 2004 at 10:13 am Interesting look back at Mac Classic (pre-OS X) Outliners.A great stash of old Mac Games at Mac Garden.
New Age Soldiering in Mongolia
Thursday 04 March 2004 at 04:06 am From Jon Robbs blog comes a piece on An American Colonel in Mongolia.Useful Bash shortcuts.
Tuesday 02 March 2004 at 10:55 pm From H. JoeBasics:
- Use up and down arrows to recall previous command
- Use right and left arrows to make changes in current command line
- After one or more letters of a command or filename, hit
the Tab key for command or filename complete; if this is non-unique,
hit the Tab key a second time for possible choices.
- !gcc will repeat the previous command starting with 'gcc'
- 'gvim !$' will apply the command 'gvim' to the last argument on the
previous command line (in Unix, '$' is a symbol for last row, column or
argument depending on the context)
Other useful methods for editing command line (includes
the command line for interactive command based programs such as
Splus [in emacs edit mode], R, maple, octave, mysql etc])
Most of these are the same as editing in emacs,
so you can check the emacs on-line help for other quick-edit
possibilities. The editing is based on the ctrl-key in combination with
another key (usually a meaningful letter for a-z) or the esc-key
followed by another key (from a-z)
Ctrl keys
- ctrl-a: beginning of line
- ctrl-e: end of line
- ctrl-k: delete (kill) remainder of line
- ctrl-u: delete entire command line
- ctrl-w: delete previous word
- ctrl-t: transpose 2 characters
- ctrl-y: yank or recover previous deletion
- ctrl-d: delete character at cursor; note distinction from the
backspace key or ctrl-h: delete character before cursor
- ctrl-f: forward one character (needed in 'emacs/Splus -e' because
arrows keys don't work)
- ctrl-b: backward one character (same comment as above)
Esc combinations
- esc-d: delete word
- esc-f: forward a word
- esc-b: backward a word
- esc-t: transpose two adjacent words
Note that some of the Ctrl-key combinations like ctrl-a, ctrl-e, ctrl-k,
ctrl-u also may work in entry fields in X applications (an example
is the web Location entry box in the netscape browser.
VI Keybindings
Tuesday 02 March 2004 at 10:50 pm From Tom FineComplete key binding reference
Key | Action | Followed by |
---|---|---|
a | enter insertion mode after current character | text, ESC |
b | back word | |
c | change command | cursor motion command |
d | delete command | cursor motion command |
e | end of word | |
f | find character after cursor in current line | character to find |
g | UNBOUND | |
h | move left one character | |
i | enter insertion mode before current character | text, ESC |
j | move down one line | |
k | move up one line | |
l | move right one character | |
m | mark current line and position | mark character tag (a-z) |
n | repeat last search | |
o | open line below and enter insertion mode | text, ESC |
p | put buffer after cursor | |
q | UNBOUND | |
r | replace single character at cursor | replacement character expected |
s | substitute single character with new text | text, ESC |
t | same as "f" but cursor moves to just before found character | character to find |
u | undo | |
v | UNBOUND | |
w | move foreward one word | |
x | delete single character | |
y | yank command | cursor motion command |
z | position current line | CR = top; "." = center; "-"=bottom |
A | enter insertion mode after end of line | text, ESC |
B | move back one Word | |
C | change to end of line | text, ESC |
D | delete to end of line | |
E | move to end of Word | |
F | backwards version of "f" | character to find |
G | goto line number prefixed, or goto end if none | |
H | home cursor - goto first line on screen | |
I | enter insertion mode before first non-whitespace character | text, ESC |
J | join current line with next line | |
K | UNBOUND | |
L | goto last line on screen | |
M | goto middle line on screen | |
N | repeat last search, but in opposite direction of original search | |
O | open line above and enter insertion mode | text, ESC |
P | put buffer before cursor | |
Q | leave visual mode (go into "ex" mode) | |
R | replace mode - replaces through end of current line, then inserts | text, ESC |
S | substitute entire line - deletes line, enters insertion mode | text, ESC |
T | backwards version of "t" | character to find |
U | restores line to state when cursor was moved into it | |
V | UNBOUND | |
W | foreward Word | |
X | delete backwards single character | |
Y | yank entire line | |
Z | first half of quick save-and-exit | "Z" |
0 | move to column zero | |
1-9 | numeric precursor to other commands | [additional numbers (0-9)] command |
(SPACE) move right one character | ||
! | shell command filter | cursor motion command, shell command |
@ | vi eval | buffer name (a-z) |
# | UNBOUND | |
$ | move to end of line | |
% | match nearest [],(),{} on line, to its match (same line or others) | |
^ | move to first non-whitespace character of line | |
& | repeat last ex substitution (":s ...") not including modifiers | |
* | UNBOUND | |
( | move to previous sentence | |
) | move to next sentence | |
\ | UNBOUND | |
| | move to column zero | |
- | move to first non-whitespace of previous line | |
_ | similar to "^" but uses numeric prefix oddly | |
= | UNBOUND | |
+ | move to first non-whitespace of next line | |
[ | move to previous "{...}" section | "[" |
] | move to next "{...}" section | "]" |
{ | move to previous blank-line separated section | "{" |
} | move to next blank-line separated section | "}" |
; | repeat last "f", "F", "t", or "T" command | |
' | move to marked line, first non-whitespace | character tag (a-z) |
` | move to marked line, memorized column | character tag (a-z) |
: | ex-submode | ex command |
" | access numbered buffer; load or access lettered buffer | 1-9,a-z |
~ | reverse case of current character and move cursor forward | |
, | reverse direction of last "f", "F", "t", or "T" command | |
. | repeat last text-changing command | |
/ | search forward | search string, ESC or CR |
< | unindent command | cursor motion command |
> | indent command | cursor motion command |
? | search backward | search string, ESC or CR |
^A | UNBOUND | |
^B | back (up) one screen | |
^C | UNBOUND | |
^D | down half screen | |
^E | scroll text up (cursor doesn't move unless it has to) | |
^F | foreward (down) one screen | |
^G | show status | |
^H | backspace | |
^I | (TAB) UNBOUND | |
^J | line down | |
^K | UNBOUND | |
^L | refresh screen | |
^M | (CR) move to first non-whitespace of next line | |
^N | move down one line | |
^O | UNBOUND | |
^P | move up one line | |
^Q | XON | |
^R | does nothing (variants: redraw; multiple-redo) | |
^S | XOFF | |
^T | go to the file/code you were editing before the last tag jump | |
^U | up half screen | |
^V | UNBOUND | |
^W | UNBOUND | |
^X | UNBOUND | |
^Y | scroll text down (cursor doesn't move unless it has to) | |
^Z | suspend program | |
^[ | (ESC) cancel started command; otherwise UNBOUND | |
^\ | leave visual mode (go into "ex" mode) | |
^] | use word at cursor to lookup function in tags file, edit that file/code | |
^^ | switch file buffers | |
^_ | UNBOUND | |
^? | (DELETE) UNBOUND |
- UNBOUND - this key is not normally bound to any vi command
- word - a lower-case word ("w", "b", "e" commands)
is defined by a consecutive string of
letters, numbers, or underscore, or a consecutive string of characters
that is not any of {letters, numbers, underscore, whitespace}
- Word - an upper-case word ("W", "B", "E" commands) is a consecutive
sequence of non-whitespace.
- sentence
- paragraph
- cursor motion command - any command which positions the cursor is
ok here,
including the use of numeric prefixes. In addition, a repeat of the edit
command usually means to apply to the entire current line. For example,
"<<" means shift current line left; "cc" means
replace entire current line; and "dd" means delete entire current line.
Key Bindings in Editing Modes
While in any edit mode (insert, replace, etc.) there are some keys that
are used to adjust behaviour, rather than just to insert text.
- ESC - leave edit mode, return to command mode
- ^D - move line backwards one shiftwidth. shiftwidth must be set, and
either the line must be newly added, or ^T must have been used.
- ^T - move all after cursor forwards one shiftwidth
- ^H - deletes text that was entered during the current edit mode.
Most versions of vi do not allow deleting to previous line.
- ^V - insert next character even if it is a editing character.
Repitition Counts
Most commands can be prefixed with a multidigit number, that influences the
way the command works.
z | position nth line number |
G | goto nth line number |
| | goto nth column number |
r | replace next n characters |
s | substitute for next n characters |
<< | shift n lines left one shiftwidth |
^ | ignored? |
_ | advance n-1 lines |
Need to differentiate between such things as 5yj vs. y5j?
Multibuffer
Standard vi does have an ability to toggle between two different files.
These will be the last two edited files (edit new files with :efilename)
To switch files, use control-^.
These filenames can be reffered to in ex commands, and subshell filters,
using two special characters: "%" refers to the current file, and "#"
refers to the previous file. Here's some handy things you can do with
this feature:
:map v :!chmod 644 %^[ make world-readable
:map q :!ci -l %^[ RCS checkin
:map V :!diff # %^[ compare previous and current files
Tags
Tags are cool, but I don't use them. Go figure. Maybe I'll write something
up here someday.
Mappings and Abbreviations
:map lets you bind a list of keystrokes to a shortcut in command-mode.
This shortcut can be a multiple-key sequence (with limitations),
and the commands within can enter and exit edit-mode.
Some examples of :map can be found above, in the multibuffer section.
Below is a list of all the normally unbound keys in vi command-mode.
g q v K V # * \ = ^A ^C ^I ^K ^O ^V ^W ^X ^[ ^_
When you try to map multiple key sequences, you won't be able to start
them with lower or upper case letters ("Too dangerous to map that"),
but the punctuation and control characters are fair game.
In addition, : can't be mapped, and sometimes a few other keys. Multiple
key sequences can also be very useful with terminal-generated sequences,
which is why the escape key is bindable. I have my xterm set to generate
=f1 for function key one, and so on, so all the function keys are easier to
use with bindings.
:map lets you bind a list of keystrokes to a shortcut in command-mode.
This shortcut can be a multiple-key sequence (with limitations),
and the commands within can enter and exit edit-mode.
Some examples of :map can be found above, in the multibuffer section.
Below is a list of all the normally unbound keys in vi command-mode.
g q v K V # * \ = ^A ^C ^I ^K ^O ^V ^W ^X ^[ ^_
When you try to map multiple key sequences, you won't be able to start
them with lower or upper case letters ("Too dangerous to map that"),
but the punctuation and control characters are fair game.
In addition, : can't be mapped, and sometimes a few other keys. Multiple
key sequences can also be very useful with terminal-generated sequences,
which is why the escape key is bindable. I have my xterm set to generate
=f1 for function key one, and so on, so all the function keys are easier to
use with bindings.
If you use multiple key shortcuts, you'll want to know about the timeout
variable. With :se timeout, you have a limited time to generate
the key sequence. This is useful if the key sequences are terminal generated.
With :se notimeout, it just keeps waiting until the next character
does or doesn't match any possible current sequences.
:map! lets you bind a list of keystrokes to a shortcut in edit-mode.
This is useful for adding editing commands to edit mode. One popular
trick is to bind the arrow keys to move up and down while (apparently)
staying in edit-mode, as in the last four lines below.
:map! ^? ^H Make delete act like backspace
:map! ^[OA ^[ka xterm arrow sequences will
:map! ^[OB ^[ja exit edit-mode, move the
:map! ^[OC ^[la cursor, and re-enter edit-mode.
:map! ^[OD ^[ha
If you use the above
trick for arrow-keys in edit-mode, you'll want to set timeout, because
otherwise you won't get beeps at all when you hit escape, only when you
use the next keystroke. With timeout, you get the beep, but after the
timeout. Since both of these are annoying, it may be a useful choice to
avoid multikey sequences that involve escape, as a matter of taste.
Also, many systems now set up command-mode arrow keys in vi by default,
which also leads to the same problem.
:ab lets you bind a key sequence to an abbreviation,
for use in edit-mode.
Abbreviations don't fire until vi decides that you've typed the shortcut
as a whole word. So if taf is a shortcut for Thomas A. Fine, and I type
taffy, it won't substitute because I didn't enter taf as a word by itself.
(If I'd used :map!, then taffy would do the
replacement before I got to the second "f".)
Abbreviations are echoed normally until complete, therefore the abbreviation
can't contain escape (you'd leave edit-mode before completing the
abbreviation),
but the replacement expression can contain escape, and can leave and return
to edit-mode.
:ab teh the
:ab #d #define
:ab #i #include
:ab cmain main(argc,argv)^Mint argc;^Mchar **argv;^M{^M}^[O
:ab mmap(NULL,st.st_size,PROT_READ,MAP_SHARED,fd,0); mmap(NULL,st.st_size,PROT_READ,MAP_SHARED,fd,0);
:ab readsig ^[G:r ~/misc/sig^M
}
To keep a live abbreviation from going off in your hands, use ^V. For
instance, if I want to type teh but have the the abbreviation above, I
can let it "fix" it, then back up and unfix it; or I can type "teh^V..."
and it won't expand the abbreviatoin.
Repeating with .
Commands can be repeated with the redo command, normally bound to ".",
but I've found this to be occasionally unpredictable. If you use multiple
key sequences in a macro, and vi is waiting to see if one of those sequences
might complete, and you start a new command here, it won't be noticed by
the redo. (Solaris, HPUX at least).
System Differences
- Older versions of vi didn't automatically set up arrow-keys in
command-mode; they didn't interfere with the beep. (Maybe multiple
key bindings were new at the same time???)
- Some versions of vi have encryption, some don't.
- Options processing is handled differently from version to version.
Solaris prefers -c command in place of +command, and
-L instead of -r.
- Differnt systems may have other keys besides : that are "Too dangerous
to map that".
- The size of macros (:map, etc.) are limited in different ways on different
systems.
- On some systems the environment variable EXINIT overrides .exrc files (Solaris, HPUX), other systems it enhances it (SunOS???, FreeBSD).
- nvi allows backspace to previous line in edit-mode (if previous line was edited) (FreeBSD).
- variants of vi that have multiple undo have different styles. One style
(linux) uses u as undo, and control-R as redo. The other style (FreeBSD)
u acts normally, but . continues on in the same direction as the last u
(whether it was undo or redo). I prefer the latter because it doesn't
interfere as much with traditional vi behaviour.
VI Reference Manual from the University of Michigan at Dearborn
Trick
I've seen various replacements for the fmt command that you can use to format
paragraphs almost automatically. Mine's better:
:map v 0ma}b:'a,.j<ctrl-v><enter>070 ? *<Escape>dwi<ctrl-v><return><ctrl-v><escape>
It's better because you don't have to prejoin the paragraph by hitting J
an arbitrary number of times. Just hit v (or whatever you've mapped it to)
starting at the beginning or in the middle of the paragraph, and it joines the
rest of the paragraph together, formats one line, and moves the cursor down
again. Just keep hitting v and it will keep formatting. You have to stop one
before the end or you'll end up with an extra short line. It also does not
leave spaces at the end of the line.
Interesting stuff for today
Tuesday 02 March 2004 at 04:34 am From Howl comes Rondezvous for Windows and Linux.Like MacDevCenter O'Reilly also have a WindowsDevCenter
Links Backlog.
Tuesday 02 March 2004 at 04:33 am Links posted from main site An excellent article on disk bottlenecks in Oracle databases and how to pinpoint performance problemshttp://www.dbazine.com/burleson19.shtml And there really is a BAARF (as mentioned in the article above)
http://www.baarf.com/ (Battle Against Any RAID Five) Neat Origami Models
http://www.keconnect.co.uk/~rglynn/diags.htm While we're putting Bioinformatics on hold theres a little known G5 cluster solution from Apple designed to do computations in this area
http://www.apple.com/xserve/cluster/wgcluster.html Popular guide to Unix pronounciations (the etymology of some of the words towards the end is pretty interesting)
http://www.eeng.brad.ac.uk/help/.faq/.unix/.pronun.html Have 3000000UKP burning a hole in your Pocket (small change for Sales people I'm sure . . .)
http://www.vladi-private-islands.de/sales_islands/sites/02_eilean.html Power miniature devices via Vibrations
http://www.technologyreview.com/articles/prototype80204.asp In the wake of recent viruses there is increasing anger at Joe Averages lack of basic IT skills
http://arstechnica.com/news/posts/1076047250.html For people who enjoy the outdoors (or camping in their backyard)
Camp stove from a Pepsi can
http://www.pcthiker.com/pages/gear/pepsiGstoveinstruct.shtml
Finger Light
http://www.s-lite.com/FingerLite.htm And of course 20 years on from 1984 we should all be doubleplus thankful for Big Brother
http://www.newspeakdictionary.com/
http://www.studentsfororwell.org/ Amusing Short Film (featured at the Sundance Film Festival) that puts lunch and wanting to get fired into an innovative new light (be sure to turn sound down!) :
http://www.eggwork.com/lunch/lunchpost.htm Control electrical equipment in someone elses house and watch the results via webcam (slow but it works)
http://drivemeinsane.com/ Was on slashdot but if you missed it - run Linux as a cooperative task beside Windows
http://www.colinux.org/ Internet Maps
http://www.opte.org/maps/ Help find related artists with this music mapping tool
http://www.musicplasma.com/ Longish video stream of the Phillips rollable LCD (ie digital paper) in action
mms://Ntstream2.ddns.ehv.campus.philips.com/efi/86090/rollable_display/rollable_display_interv_long.wmv Not quite as useful as fixing the f%#king product in the first place but still . . .
http://www.microsoft.com/education/?ID=SecurityPosters Two useful Public Service tools
View website logins (eg for New York Times) for registered accounts so you don't have to
http://www.bugmenot.com/
Use once instant mail accounts to thwart spammers
http://www.mailinator.com/mailinator/Welcome.do Mix up content of two different websites
http://www.topfx.com/cgi-bin/mixmaster.cgi
Like this
http://www.topfx.com/cgi-bin/mixmaster.cgi?layouturl=http%3A%2F%2Fwww.accelrys.com&contenturl=http%3A%2F%2Fwww.dilbert.com Movies of the Honda Asimo robot in motion
http://world.honda.com/ASIMO/movies/ Virtual CD/DVD Emulator
http://www.daemon-tools.cc/portal/download.php?mode=ViewCategory&catid=5 Or a Microsoft gadget for XP to mount ISO's (its beta so be careful)
http://download.microsoft.com/download/7/b/6/7b6abd84-7841-4978-96f5-bd58df02efa2/winxpvirtualcdcontrolpanel_21.exe Does what is says - enhance your corporate lingo -
http://www.dack.com/web/bullshit.html Nice Flash Art
http://www.thethirdplace.com/espace/module8/
http://www.trevorvanmeter.com/flyguy/ Almost there with electronic paper
http://www.akibalive.com/archives/000515.html#more A dock for PocketPC's and Palms to allow USB/Ethernet and Video Out - use your PDA as a desktop
http://www.synosphere.com/gallery.htm The System Is Down - why this excuse is unacceptable
http://www.darwinmag.com/read/010104/down.html On the same site - metrics for storage technology
http://guide.darwinmag.com/technology/infrastructure/storage/index.html#metrics