handy eclipse template: class quick init

public ${enclosing_type}() {
${cursor}
}
public static void main(String[] args){
new ${enclosing_type}();
}

how to update ports on freebsd (better way)

first get cvsup_fastest

then make a script

#!/bin/sh
cvsup -gL2 -h`cvsup_fastest -Q -c us` /usr/share/examples/cvsup/ports-supfile



cron this or whatever

unix shell scripting: args check

usage()
{
echo "Usage: program [args] [bleee]"
}
if [ $# -eq 0 ] ; then
echo "ERROR Insufficient arguments"
usage
exit 1
fi

send email on solaris 8 with xmail

/bin/mailx -s "subject" email@address.com < /path/to/message/body.txt

the message body has to be a file.

Set env variables with tcsh

setenv VARIABLE /some/path/:/some/other/path

add package on solaris 8

su root
pkgrm [package name]
pkgadd -d [path to pacakge]

Unsupported major.minor version 48.0

Problem:
Unsupported major.minor version 48.0

solution:
what you are running was compiled on 1.4 and you are running 1.3 or older

Cannot use javahl nor command line svn client

Problem:
svnant gives this error when i try to run the example that comes with it, or anything else
Cannot use javahl nor command line svn client

Solution:
the javahl dll file needs to be on your PATH to be able to load. svntask uses a System.loadLibrary() to load this dll, so modify your PATH variable and add the dir of where that dll is at. If you get subclipse for subversion then you can find javahl in the plugins dir, i think.

You can check what your path is by doing:
System.out.println(System.getProperty("java.library.path"));
after you change your path, you may need to reboot because windows is stupid.

how to annoy people using UNIX

first, do
$who
mk pts/3 Aug 8 15:07 (**********.com)
to find out who is around to annoy.
then do
$yes FATAL SYSTEM ERROR. SHUTTING DOWN | write mk pts/3

this will print FATAL SYSTEM ERROR. SHUTTING DOWN all over their terminal until you press ctrl-c

Problem: MANIFEST.MF missing class-path inside JAR

Problem:
MANIFEST.MF missing class-path: inside JAR.

Solution:
Put a blank like at the end of the manifest file.

How to terminate process by name in UNIX

kill -9 `ps -ef | grep process_name | grep -v grep | awk '{print $2}'`

Note that the grep process_name should be the command that you ran. Also note that the commands after 'kill -9' are enclosed in backtiks.

Sam's Spinach Salad

sfultong: spinach, a bunch
sfultong: slivered almonds
sfultong: garlic
sfultong: oil, salt, pepper
sfultong: mince about 2 cloves of garlic for a pound of spinach
sfultong: oh, and balsamic vinegar
sfultong: and then put the minced garlic in oil, heat on medium for about a minute, or whenever the garlic starts flavoring the oil
sfultong: at the same time, toast the almonds
sfultong: usually I just put them naked in another pan, and put them on low/medium heat
sfultong: make sure not to burn them
sfultong: and... then throw both the almonds and the garlic oil on top of the spinach
sfultong: add salt, pepper, and a bit of balsamic vinegar
sfultong: probably about half as much balsamic vinegar as oil you use for garlicing

How to portscan with nnmap

nmap -P0 -p0-65535 127.0.0.1

-P0 == dont try to ping
-p == port range (note that its 0-65535)

obligatory man page posting:

Nmap 3.81 Usage: nmap [Scan Type(s)] [Options]
Some Common Scan Types ('*' options require root privileges)
* -sS TCP SYN stealth port scan (default if privileged (root))
-sT TCP connect() port scan (default for unprivileged users)
* -sU UDP port scan
-sP ping scan (Find any reachable machines)
* -sF,-sX,-sN Stealth FIN, Xmas, or Null scan (experts only)
-sV Version scan probes open ports determining service & app names/versions
-sR RPC scan (use with other scan types)
Some Common Options (none are required, most can be combined):
* -O Use TCP/IP fingerprinting to guess remote operating system
-p ports to scan. Example range: 1-1024,1080,6666,31337
-F Only scans ports listed in nmap-services
-v Verbose. Its use is recommended. Use twice for greater effect.
-P0 Don't ping hosts (needed to scan www.microsoft.com and others)
* -Ddecoy_host1,decoy2[,...] Hide scan using many decoys
-6 scans via IPv6 rather than IPv4
-T General timing policy
-n/-R Never do DNS resolution/Always resolve [default: sometimes resolve]
-oN/-oX/-oG Output normal/XML/grepable scan logs to
-iL Get targets from file; Use '-' for stdin
* -S /-e Specify source address or network interface
--interactive Go into interactive mode (then press h for help)
Example: nmap -v -sS -O www.my.com 192.168.0.0/16 '192.88-90.*.*'

Neural Network based Checker AI Link

I wrote a much more detailed description of the neural network checker AI project that i worked on, it can be found here:

Clicky Click me!

JApplet not painting on init

my crapplet has internal JPanels, and it was not repainting on load, only when the window was resized.

solution:

add this:
<br />public void repaint(Graphics g){<br /> update(g);<br /> refreshUI(); //this is the function to redraw the GUI<br />}<br />

JOptionPane Madness

String options[] = new String[]{"yes","no"};
int n = JOptionPane.showOptionDialog(frame,
"Would you like green eggs and ham?",
"A Silly Question",
JOptionPane.YES_NO_OPTION,
JOptionPane.QUESTION_MESSAGE,
null, //don't use a custom Icon
options, //the titles of buttons
options[0]); //default button title

some basic C command line crap

cc -o yourprog yourprog.c -I/path/to/header -L/path/to/libs

: the -o is the output file
: ie, the thing you want to run
: -c is object file
: if you did cc -c 1.c -c 2.c -c 3.c
: you'd have 1.o, 2.o, 3.o
: then you could cc -o foo 1.o 2.o 3.o
: and it would link foo from the object code

: btw
: if you use lowercase Ls
: -l math -l crypt -l thislib -l thatlib
: you can link in additionally libraries as needed

how to update ports on freebsd

cvsup -gL2 -hcvsup11.freebsd.org /usr/share/examples/cvsup/ports-supfile

WindowCloser code

i use this all the time:

this.addWindowListener(new WindowAdapter() { public void windowClosing(WindowEvent e) { dispose(); } });

BufferedImage needs Display under Unix

problem:

java.lang.InternalError: Can't connect to X11 window server using ':0.0' as the value of the DISPLAY variable.

solution:

set java.awt.headless=true
System.setProperty("java.awt.headless","true");

unless your system needs a gui, then, you need to google.