warning: implicit declaration of function …

Some errors you might encounter when you compile with code::blocks.

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warning: implicit declaration of function ...

It seems that your header files have no prototype declared for some of the functions. In this case, the function itself is implicitly treated as the function prototype.

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suggest parentheses around assignment used as truth value ...

You need to add some parentheses. If your code is like :

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while( res = function())...

…then the… Read More »

Change settings and passwords in Windows using Linux

In this tutorial, I will present a way to change or delete a user password in a Windows XP operating systems or Windows 7. On Windows Vista, I have not tried it yet, but you can try. I get under Fedora 15 this software, using yum.

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# yum install chntpw
Loaded plugins: langpacks, presto, refresh-packagekit
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package chntpw.i686 0:0.99.6-15.fc15 will be installed
--> Finished Dependency Resolution
 
Dependencies Resolved
 
================================================================================
Package         Arch          Version                    Repository       Size
================================================================================
Installing:
chntpw          i686          0.99.6-15.fc15             fedora           71 k
 
Transaction Summary
================================================================================
Install       1 Package(s)
 
Total download size: 71 k
Installed size: 212 k
Is this ok [y/N]: y
 

You need to locate the SAM file. Under… Read More »

How to use the import command to take screenshots?

This tutorial works very well on older versions of Fedora 15. It is necessary that you have ImageMagick installed.

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$ import --help
Version: ImageMagick 6.6.5-10 2011-02-08 ...

To create a screen capture using the following command:

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$ import -window root image.jpg

Use the following command for a png image format:

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$ import -window root image.png

Command import has options for this purpose without using the mouse.

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$ import -window root -crop 200x200+0+0 image.jpg

If you want… Read More »

Convert text to HTML using regular expressions with Geany – part 004.

Open a blank page and write this text in Geany:

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This is a simple text.
This is a simple text.
This is a simple text.

Press CTRL + H and make changes as shown below: The text will be ahead html paragraph tag. The text will be the end of the paragraph html tag end of each line. So I turned a simple text in html source code.

Using wget tool.

Download entire site, use command:

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wget -m http://www.yoursite/yourfolder/

If you want the pages that site links than using:

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wget -H -r --level=1 -k -p http://www.yoursite/yourfolder/

If you want to download only jpg files, then use:

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wget -A .jpg -l 3 -r http://www.yoursite/yourfolder/

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Some args of wget command :
-r, -recursive
    Specify recursive download.
-l, -level=NUMBER
     Maximum recursion depth (inf or 0 for infinite).
-k, -convert-links
     Make links in downloaded HTML point to local files.
-p, -page-requisites
     Get all images, etc. needed to display HTML page.
-erobots=off:
  Ignore robots.txt files and just download
-np:
  Don't go up to the parent directory
-N:
  Only download NEWER files than what's already been downloaded
-nd:
  No directory, by default wget creates a directory
--wait=seconds
  specified number of seconds between the retrievals
--random-wait
  the time is vary between 0.5 and 1.5 * wait seconds ( see wait option)