Linux

The/dev/SHM will be loaded when the Linux system is started by default. It is called tmpfs. Some people say it is the same as ramdisk (Virtual Disk), but it is actually different. Like a virtual disk, tmpfs can use your RAM, but it can also use your

1. You must first disable the NIC device; otherwise, the system will be reported to be busy (siocsifhwaddr: Device of resource busy) and cannot be changed. Command:#/Sbin/ifconfig eth0 down2. Modify the MAC address. The command is:#/Sbin/ifconfig

Cppunit has never been used before, but it is currently in use by companies. To prepare TDDCodeThe dojo, Which is downloaded today. But I encountered a problem just after compilation. I checked that the configuration items in the original code

Write a simple hello. c     # Include "stdio. H"     Void Hello (const char * name) { Printf ("Hello, % s! /N ", name ); }   $ GCC hello. c /Usr/lib/GCC/x86_64-linux-gnu/4.4.5/.../../lib/crt1.o: In function '_ start' : (. Text + 0x20):

On the Linux application platform, we often need to read data from the SD card, such as upgrading the touch screen firmware, such as loading debugging text, all of which need to be operated by the Linux File System. You can take an example to

Socket is the socket interface, which is actually the communication node on the network. A user or application can connect to any communication endpoint on the network and transmit data as long as it is connected to a socket. In Linux, programmers

Just as if you write a C program that needs to contain the header file of the C library, Linux kernel programming also needs to contain the kernel header file. Most Linux drivers need to include the following three header files: # Include # Include #

View TCP keepalive attributes in Linux Http://www.oklinux.cn Source: CCID network Kron member collection of tourists Collection "big medium small]

Configure the svn server for Synchronous updates in Linux Build the environment firstSelect centos5.0 for Linux# Yum update# Yum-y install gcc# Yum-y install httpd# Yum install mod_dav_svn subversiondependencies resolved In the initial

Problem: A library file in the project is 32-bit and compiled in 64-Bit mode. An error occurs: [***** @ Fedora-17-64 Lab1-linux] $ makeGCC datalink. c Protocol. A-O datalink-lm-lstdc ++/Usr/bin/ld: i386 architecture of input file 'Protocol. A

Before the Linux operating system is started, the first is hardware power-on, bios, and then the main boot loader. We start from power-on until the INIT process. Start Part 1: power-on from the system to enter the Linux operating system. Part 2:

Source :《In-depth analysis of Linux kernel source code" Http://oss.org.cn/kernel-book/ch06/6.6.1.htm 6.6.1 basic principle of exchange As mentioned above, each process can use a large amount of space (3 GB), but the actual space used is not large,

#include #include #include #include #include #include #include #include #include #define MY_FILE "/tmp/LogFile"char buf[128];struct file *file = NULL;static int __init init(void){ mm_segment_t old_fs; printk("Hello, I'm the module that

Configure the ARM Linux cross-compilation tool in the Fedora 7 Environment 1, SlaveHttp://kegel.com/crosstoolDownload crosstool-0.43.tar.gzPut it under/home and unzip: tar-zxvf crosstool-0.43.tar.gz Assume that you want arm9tdmiOn the tool chain

Garbled characters are displayed in Chinese in Linux. According to the Internet, the corresponding font, such as "", cannot be found in Linux. Although the following method can solve the problem of garbled characters, it is troublesome to modify the

Linux display does not correctly recognize the optimal resolution Ubuntu 10.10x11When the used display cannot be correctly identified by Linux and thus cannot use the optimal resolution, you can change the resolution in the following ways. (1) first,

Start programming Linux Shell/makefile. cainiao (myself) is not very familiar with these underlying technologies. one by one! Sharing! According to original Bytes. 1. Build, host, and target Common Parameters in cross-compilation are build, host,

Some time ago I bought a display and changed my antique book (P3) to Ubuntu. Later I adjusted samba, but I was always confused when I configured ssh .... I think that although I have been using Linux since redhat9 on and off, I have gone through the

Http://coderbee.net/index.php/linux/20130424/41 Allows you to quickly move the cursor, edit commands, and edit historical commands and run bang (!) commands on the Linux Command Line (!) Commands and control commands. Make basher more

Look at the source code of SIPP and see that there is a full background running, that is, it is out of the terminal. Do not print any information to the terminal. The Code is as follows: #include #include #include #include #include #include