/Etc/profile: This file sets the environment information for each user in the system. When the user logs on for the first time, this file is executed. modifying this file is valid for all users.
And collect shell settings from the configuration
The built-in bochs on ubuntu10.04 cannot be debugged. You need to compile the bochs with the debugging function on your own.
1. Source Code
Bochs-2.4.6.tar.gz
2. Install the dependent Library
Sudo apt-Get install build-essential Xorg-dev
1. Sometimes the system cannot mount the NTFS disk in windows, and you need to manually mount the disk and write a simple script:
If you do not know your disk number, enter the following command:
Ls/dev/SDA *
In this case, we can see SDA, sda1,
Chinese garbled characters often occur in Linux systems, mainly because the Linux system uses UTF-8 encoding by default. So the specific problem will be analyzed in detail, search for a solution from the Internet, or modify the configuration file,
The/proc directory contains all system information. If necessary, you can use the following ls:
CAT/proc/cpuinfo # view CPU information. The content is full! CAT/proc/meminfo # view memory information. CAT/proc/ioports # view IO port
In an operating system, everything can be viewed as a file, and a file is the basic unit of the operating system's logical organization. ForUNIXAndLinuxFor file systems, the hierarchical standards of file systems (FHS) Is the main reference of its
Compiling and installation in LinuxSource codeThere are three steps:./configure, make, make install
Step 1CodeDirectory
Run commands
1./Configure -- prefix = installation directory -- target = Target Platform
The above two are the most basic,
From: http://www.cnblogs.com/sunleecn/archive/2011/11/01/2232210.html
Whereis ProgramName>Find the software installation path-B: Only query binary files.-M: Only search for help files-S: search onlySource code-U: exclude files of the specified
1. Process and thread
The process is in the execution periodProgramContains independent address space, multiple execution threads, and other resources.
A thread is an activity object in a process. Each thread has an independent program counter,
1: Vim csope ctags
Linux kernel design and implementation
Deep understanding of Linux kernel elk
Linux Device DriverProgram
Deep understanding of Linux Virtual Memory Management
Gain an in-depth understanding of the Linux Network
Chapter
1. Apply for a Google appengine: http://code.google.com/intl/zh-cn/appengine/and create an appid. 2. Download the Google App Engine SDK for python. Download Page:
Https://developers.google.com/appengine/downloads? Hl = ZH-CN #
1. i386 is applicable to all 32-bit intel and AMD CPUs and 32-bit CPU via X86 architecture.
Intel platforms include 8086,80286, 80386,80133, Pentium series (1.2.3.4), sai Yang series, and Pentium D series
As well as Centrino P-M, Core Duo and so
"Let me tell you nothing, Mr. Wang. I'm happy now, but sadly: In this last chapter, I'm talking about it with treasure, now, I am paying back my account). I like every lecture. I know that I am a little closer to the end. I just need to pass this
In this time, I will talk about things related to time. We are familiar with this, and I am just like the theme.
First, we need to understand two concepts: system timer and dynamic timer. Periodic events are all driven by a system timer. The
"John, come on yesterday, do you know? In asynchronous Io, what can be used as AIO notifications ?" I looked at her with longing eyes.
"Ah? Well, I know what you said, I can remember it. It's good to let me invent and create it, but I won't. "John
In Linux, system calls are the only means for the user space to access the kernel, and they are the only legal entry to the kernel. In fact, other methods, such as device files and/proc, must be called by the system..
Generally,
I will not talk about the concept of processes and threads. In short, you remember: the kernel scheduling object is a thread, not a process. In Linux, threads are very special. They do not distinguish between threads and processes. Another process
Time: PM
Location: dormitory ..
"Mr. Wang, I won't talk much today, but I didn't finish talking about it yesterday. Otherwise, I won't be able to even get up." I urged.
As mentioned in the previous section, if the memory applied for by kmalloc
Environment variable:/etc/profileSystem Version:/etc/RedHat-releaseLocale command to view the system codeModify/ECT/sysconfig/i18n to: lang = "zh_CN.UTF-8"
Ifconfig
Wget
CurlCommand Line curl tutorial (almost simulating browsers and
Looking at the Code directly, even if you have understood the code, there is still a feeling that you have not learned it. real mastery comes from practice and can be done by yourself. the purpose of the "simple AB Task Switching program" series is
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