General Unix stuff:


cd -    --- "undo" on changing directories:<bold>
xkill kills the window (but not the process)
kill -9 kills the process.

Man pages which are not the default ones are viewed like this:
man socket -8

netstat gives all the sockets open on the machine
file gives the file type
uname -a gives the information about the machine (you are on)
detex strips out LaTeX tags, which is useful for word counting (wc).
strings -- gives the ascii strings from a binary file.
xargs is like map -- you pass it a sequence of stuff separated by
      newlines and it applies the command to each line.

tgif is a utility for drawing diagrams which apparently has
"connection mode" like in PowerPoint.

Ctrl^S stops commands from reaching the shell (very easy to accidently
       press if you think you are in Emacs)
Ctrl^Q restarts the flow of commands again.

Ctrl^Z makes the current process a zombie.

Use fg and bg (foreground and background) to bring it back to life.


lprm -- removes print jobs. Has the same arguments as lpr.
lpq x -- gives a list of printers, their properties and their locations
 

rpm:

rpm -q -a 
lists all the packages installed on your system.

tar -xjvf uncompresses .bz2 files.


Emacs


Rectangle cuts:
Ctrl-x r k  Cut
Ctrl-x r y  Paste

These are absolutely wonderful if you want to insert >> before each
line or something like that.

Ctrl-x r t Insert in rectangle

Rectangle cuts to register:
Ctrl-x r r 
Ctrl-x r g


Jump to register:
Ctrl x r j <<reg>


Replace regular expressions:
M-x replace-regexp
Particularly useful are:
^ -- beginning of line
$ -- end of line


When replacing strange strings:
M-x replace-string

now Ctrl-Q means "quote the next character" at which point you can hit
Ctrl-M to get the DOS \r and then replace it.
Ctrl-j to get the unix newline

Anyway, Ctrl-q is the important one to treat the next keypress as a quote.

So, to search and replace new lines:
Ctrl-Shift-4 Ctrl-Q Ctrl-j (which is the same as Enter) Enter .... 

toggle-case-fold-search

C/C++

#if 0
#endif


CL setup:

rquota
rdesktop -F waterloo
otpw-gen | lpr
ssh ssh-relay1.cl.cam.ac.uk

Exmh:

Ctrl-Tab for looking up the email address.


ssh option if the sysadmins are *really* paranoid
-oStrictHostKeyChecking=no

mh: when replying to a message, the original message lives in the @
file in the home directory.


LaTeX


pdflatex

dvipdf (not installed in the CL)


tex makebst -- bibliography styles....


</bold>\texttt{}


Cross-referencing

\label

\ref{}

Citations:

\cite{}


Lists of things:

\begin{itemize}

\item
\end{itemize}


\begin{description}
\item[Item heading printed in bold] Item text
\end{description}

URL's:

\usepackage{url}
\url


\usepackage{latexsym} --for symbols.


Figures:
\usepackage[dvips]{graphicx}

...


\begin{figure}
\centering 

<x-color><param>Purple</param>\psfrag</x-color>{A}[cc][cc]{$\vdots$}
<x-color><param>Purple</param>\psfrag</x-color>{B}[cc][cc]{$N$}
<x-color><param>Purple</param>\psfrag</x-color>{F}[cc][cc]{$$}
<x-color><param>Purple</param>\psfrag</x-color>{D}[cl][cc]{$N$}
<x-color><param>Purple</param>\psfrag</x-color>{C}[cl][cc]{$\vdots$}
<x-color><param>Purple</param>\psfrag</x-color>{E}[cl][cc]{$n$}

\includegraphics[height=4cm]{sys.eps}
\caption{System description} \label{f1}
\end{figure}


PSfrag?

At the end...

\bibliography{Anon_p2p}


Tables:
\begin{tabular}{lll}
as & bs & cs \\ 
\end{tabular}


Tables with lines:

<x-color><param>Purple</param>\begin</x-color>{<x-color><param>Blue</param>center</x-color>}
<x-color><param>Purple</param>\begin</x-color>{<x-color><param>Blue</param>tabular</x-color>}{|l|l|} <x-color><param>Purple</param>\hline</x-color>
$n$ & mix threshold <x-color><param>Red</param>\\</x-color> <x-color><param>Purple</param>\hline</x-color>
$p$ & pool <x-color><param>Red</param>\\</x-color> <x-color><param>Purple</param>\hline</x-color>
$t$ & period <x-color><param>Red</param>\\</x-color> <x-color><param>Purple</param>\hline</x-color>
$P(n)$ & the probability of a message being forwarded during the current
  round <x-color><param>Red</param>\\</x-color> <x-color><param>Purple</param>\hline</x-color>
<x-color><param>Purple</param>\end</x-color>{<x-color><param>Blue</param>tabular</x-color>}
<x-color><param>Purple</param>\end</x-color>{<x-color><param>Blue</param>center</x-color>}



Sectioning...
\paragraph*{}
\subsubsection*{}


\mbox{} -- text box within math mode

\\ -- newline


\( \) -- big brackets.


\displaystyle -- makes the superscripts ad subscripts on the Sigma
(summation) come out above and below the Sigma rather than as
superscripts and subscripts. If this happens within an array, it only
works for that cell in the array! Very confusing.


Fonts:

\sf,
\bf,

etc -- see page 32 of Lotel'nikov & Chebotaev.


BOXES!!!
\colorbox[gray]{0.8}{$(\tau,(a,(m,p,c)));(\tau,(b,(m,q,c')));$}


Some LaTex Macros:
\let\oldsum\sum
\renewcommand{\sum}{\oldsum\limits}

\newtheorem{teo}{Theorem}

\newcommand{\timestamp}{2002-09 -- Time-stamp: <<2002-12-10 10:52:01
aas23>}
(The latter needs some emacs magic as well. Need to find out what that
is)

na\"{<x-color><param>DimGray</param>\i</x-color>}ve


Packages:
\usepackage{url}
\usepackage{amsmath}
   gives \text{}
\usepackage{amssymb}
\usepackage{latexsym}
\usepackage{parskip}
\usepackage{psfrag}


Finding the bounding box from an excel .eps output.

gs -sDEVICE=bbox graph1.eps

lpr -Tgsps does some magic