تقویم ایرانی

تقویم ایرانی بسیار جالب و زیبا در آدرس زیر موجود است. کاش میشد اینو مثل یک گجت برای گوگل یا ویندوز ویستا در آورد.
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شهاب

دستورهای مفید یونیکس

Commonly Used UNIX Commands

There are a few things you need to remember when entering UNIX commands:

• UNIX commands are typed at a prompt. Very often the prompt is a percent sign %. Sometimes it is the name of the machine followed by the %. The cursor may be a blinking white square on a black background, a blinking black square on a white background, or a blinking color square on a color background.
• UNIX commands are case sensitive and are usually lower case. This means that ls and LS are completely different commands. At the end of this section is a chart of some commonly used UNIX commands.
• Spaces are very important. There is always a space between the command and the file or directory it acts upon. In the following example of a command line, cd is the command and /afs/andrew/course/76/271-Summer/dheagy is the directory.
  Example: cd /afs/andrew/course/76/271-Summer/juser
• In order for a UNIX command to be executed, you must press Enter at the end of a command line. If all goes well, the prompt and cursor appear on the next line waiting for the next command. It often looks like you haven’t done anything, but unless there is an error message, your command has been executed. If there is a problem, you will generate an error message, such as “Command not found.” If you generate this type of error, you probably typed something incorrectly. Try again.
• If you type something and you want to get out of it, press Ctrl + C.
  

Command		Action
cat		Print contents of file in the command window
cd		Change directories
cp		Copy the contents of file into file2
history		List history of all commands issued at system prompt
ls		List the files and subdirectories in a directory
ls -F		List the difference between files and directories (directories will have a /)
ls -l		List files with status information (list the long way)
ls -lt		List file information in long format, sorted by time with newest files (or newly changed files appearing first
ls -a		List all the files in a directory, including dot files
mkdir		Make a directory
mv		Move file to file 2
pwd		Print the pathname of the current directory
rm		Remove, or delete, files
rmdir		Remove directory
fs la		List access rights for (for more information on access rights, read File and Directory Protections)

تقویم ایرانی برای فایرفاکس

این پلاگین تقویم(روزنما) ایرانی برای نمایش روزهای تقویم ایرانی در گوشه ی فایرفاکس است و بسیار مفید و به درد خور می باشد. به خصوص برای درمانده های دور از وطن مانند خود من که یادمون میره چه روزی به روزنمای خورشیدی ایران هستش امروز. پلاگین رو میتونید از اینجا بارگذاری کنید

پس از نصب روزنما مانند نمای زیر خواهد بود

گوناگونی در پیاده سازی برون رفت IMAP و POP

With IMAP, the master copy of your mail is on the server. Though mail is also downloaded to your personal computer and placed into a local copy of your IMAP server folder structure, it is not necessarily a complete copy at any given time. This is very different from POP. In POP, if you see a summary line for a message in your Inbox, the entire message is there on your personal computer, and you don't have to be connected to the email server to see it. But with IMAP, the summary line may be the only part of the message that has been downloaded to your personal computer. When you ask to see the message, it will be downloaded to your personal computer and then displayed to you, and the copy will remain there on your personal computer till you delete the message in your Inbox.

Source : http://www.stanford.edu/services/imap/firstday.html

حل معادلات سه مجهولی در مطلب

اگر معادلات زیر را دارید

8x-2y+5z=10
-2x+10y-3z=0
-5x-3y+10z=0

فقط کافیست دستورهای زیر را در مطلب بنویسید

A=[8 -2 5; -2 10 -3; -5 -3 10]; % a 3x3 matrix
b=[10;0;0] %a 3x1 matrix, be careful not to forget the 2 ; they mean break to the next row in matrix

temp=inv(A)*b % temp will be a 3x1 matrix and contains your answer :-)
x=temp(1)
y=temp(2)
z=temp(3)

ویندوز به سرعت پس از وارد شدن به یک حساب کاربری خارج میشود

XP Pro logs off immediately after you log in ?

اگر این مشکل را دارید که پس از لاگین به یک حساب کاربری به سرعت و خود به خود لاگ اوت میشوید مشکل شما با این روش حل میگردد

Problem: Computer Logs off out when you login
Cause: Search Assistant (search bar aside the clock in windows)

3 Steps.

1.- Get into the recovery console (with boot disks, you can get them from microsoft page).

2.- Get the file userinit.exe from another NOT INFECTED computer. (located in windows/system32 folder)

3.- Overwrite the userinit.exe original file (from the infected computer) with the new one (use a cd or disk to transport it) (COMMAND: COPY e:/userinit.exe c:/windows/system32/userinit.exe)

4.- Rename the userinit.exe to wsaupdater.exe

5.- Exit and ENJOY.

Source : http://www.opentechsupport.net/forums/archive/topic/20552-1.html