In essence, it is to modify the kconfig and makefile files.
Familiarize yourself with the kconfig syntax
1. Menu menuname
2. Configure mydomainename
3. bool implements enametoshow
4. Depends on another1_ename
5. Default y
6. Help
7.
Usage:
Printf ("\ 033 [background color; font color M string \ 033 [0 m ");
Example:
Printf ("\ 033 [47; 31 mhello world \ 033 [5 m ");
Note:
47 is the background color, 31 is the font color, and hello World is the string. \ 033 [5 m is the control
In Linux, how can I back up my previous work more conveniently? Do I need to package the package by typing commands every time? The best way is to use the powerful shell in Linux.
The following is a simple example. It is used to back up shell
The beginning and end of a string
% X = aabbaarealwwvvww
% Echo "$ {x % W * w }"
Aabbaarealwwvv
% Echo "$ {x % W * w }"
Aabbaareal
% Echo "$ {X # A * }"
Lwwvvww
% Echo "$ {X # A * }"
Bbaarealwwvvww
Where, # indicates the header, because #
I. Description
It is centered on X server and is briefly divided into four layers,
Ii. Differences between the X and framebuffer Modes
1. x Mode
1) What is XWe often say that X Windows, X, and X11 refer to the X protocol version 11, or
By default, garbled Chinese characters may occur when you access the FTP site using gftp. The solution is to select "remote character sets (remote character set) in" General) "add" gb2312; "to access normally.
Complete solution:
Add export lang =
# Include # Include Int flag = 1;Void * thr_fn (void * Arg ){While (FLAG ){Printf ("******* \ n ");Sleep (10 );}Printf ("sleepTestThread exit \ n ");} Int main (){Pthread_t thread;If (0! = Pthread_create (& Thread, null, thr_fn, null )){Printf
4.2.1 usb_endpoint_is_int_in
Determine whether the endpoint is of the interrupt in Type
Static inline int usb_endpoint_is_int_in (const struct usb_endpoint_descriptor * EPD)
{
Return (usb_endpoint_xfer_int (EPD) & usb_endpoint_dir_in (EPD
I,
W command
This command is used to display the users logged on to the system. W command is powerful. It not only shows who logged on to the system, but also shows the current work of these users, the statistical data is more detailed and
Suppose you find it takes a long time to run a program on the front end, but you need to do other things, you can use
CTRL-Z, terminate the program, and then you can see the system prompt:
[1] + stopped/root/bin/rsync. Sh
Then we can schedule the
I have compiled my own actual kernel through online materials. I have written the process of compiling the Linux kernel here. It may be helpful for other Linux enthusiasts to compile and learn, most of them are online materials, and some of my
After upgrading to Ubuntu 2009
Qq often exits automatically. I don't know what the problem is. As a result, I used Web QQ for a period of time.
Yesterday we found that it could be processed. Modify/usr/bin/QQ and add an environment variable.Export
There are many things worth learning about in Linux. Here we mainly introduce the Linux library files. After collecting and sorting out the Linux library file materials, I will share them with you here, I hope you will have a lot to learn.
Linux
Microsoft Windows
The paintbrush tool in 3.0 provides users with powerful graphic rendering and editing functions, such as rotating, scaling, and splicing. [1] these functions can be used to easily generate various complex color images. the
When the c api function in Linux is abnormal, The errno variable (including
Errno. h) assign an integer. Different values indicate different meanings. You can view the cause of the error by checking the value, in actual programming, this solution
1. pgrep: for example, you can use pgrep-u root to replace PS-Ef | egrep '^ root' |
Awk '{print $2}' to capture the root PID.
2.
Pstree: I think this command is cool. It can directly list the process tree, or in other words, list the processes
When using the Linux operating system, it is inevitable that you encounter some software "Shelling" problems. In this case, you need to use the powerful kill command in Linux to end the related processes. This is extremely easy in Linux. You only
The Linux shared library has a long history and is no longer a new concept. Everyone knows how to compile, connect, and dynamically load (dlopen/dlsym/dlclose)
Shared library. However, many people, even some experts, may have a vague understanding
Inux learning bibliography recommendation
Linux Basics
1. Linux and Unix shell programming guide
C language basics
1. Book C primer plus, 5th edition [us] by Stephen Prata
2. The C programming language, 2nd edition [us] by Brian W. kernighan David M.
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