BIOS consists of two parts: POST code and runtime services. After the POST is completed, it will be cleared from the memory, but the service will remain in the memory when the BIOS is running. The BIOS searches active and bootable devices in the
Ln is another very important command in linux. Its function is to create a non-same link for a file in another location. The most common parameter of this command is-s, the specific usage is the target file of the ln-s source file.When we need to
Objectives of this section:
Exec replacement process image
Exec associated function group (execl, execlp, execle, execv, execvp)
1. exec replaces the process image
On Process Creation, Unix adopts a unique method, which separates Process
Objective: To use a wired connection network and use Mentohust to authenticate ruijie. the wireless network is configured as AP hotspot shared Internet access.1. configure a wired network
Edit
nano /etc/network/interfaces
Comment out DHCP and
I. Three time Structures
Time_t: // seconds
Struct timeval {
Long TV _sec;/* seconds */
Long TV _usec;/* microseconds */
};
Struct timespec {
Time_t TV _sec;/* seconds */
Long TV _nsec;/* nanoseconds */
};Ii. setitimer ()
In the
Not often needed, sometimes in cases of dedicated point-to-point links.7.4.1. Using "ip"
Usage:
#/Sbin/ip-6 route add / dev disable metric 1
Example:
#/Sbin/ip-6 route add 2000:/3 dev eth0 metric 1
Mediawiki import database download: http://zh.wikipedia.org/wiki/Wikipedia:%E6%95%B0%E6%8D% AE %E5%BA%93%E4%B8%8B%E8%BD%BDMediaWiki data import Method
Use the php Command that comes with MediaWiki: mwdumper.Manual: Importing XML dumps
This page
Delete the first row of the file: sed '1d 'filename
Delete the last column of the file: awk '{print $ NF}' filenameCommand for deleting duplicate lines in awk: awk '{if (! Seen [$0] ++) {print $0 ;}} 'filename'
Two methods to compare files:
1) comm-3
Starting, stopping, and restarting MySQL is an operation that every webmaster with an independent host must hold. The following is a brief introduction:1. start with service: service mysqld start2. Use the mysqld script to start:/etc/init. d/mysqld
Frequently used: % s/oldstring/newstring/g and: % s/oldstring/newstring/gc Replace the oldstring in vim with newstring.
When marking samples today, I searched for more vim replacement operations, as shown below:
1.% s/oldstring/newstring/Replace
Take note of the following two articles:
Http://s135.com/post/288/
Http://down.chinaz.com/server/201202/1671_1.htm
# Wget http://home.tiscali.cz /~ Cz210552/distfiles/webbench-1.5.tar.gz
# Tar zxvf webbench-1.5.tar.gz
# Cd webbench-1.5
#
Linus Torvalds has released the first RC version of Linux 3.10 on Monday, which means that the 3.10 merge window is closed. The official version is expected to be released between the end of June and the beginning of July. Linux 3.10 combines more
In fact, I also obtained a search from the Internet. Of course, I also encountered this problem. The method is very simple.
First, download and install a small program. Run sudo apt-get install python-mutagen on the terminal.
After the download
Recently, a project needs to be developed based on the IS-IS routing protocol. All the open-source routing software that has found quagga seems to be the only software that supports the IS-IS Protocol and IS open-source. However, quagga has many
Basic
: E filename
OpenFilenameFor edition
: W
Save file
: Q
Exit Vim
: Q!
Quit without saving
: X
Write file (if changes has been made) and exit
: Sav filename
Saves
Do nothing!Read
NormalMode.
InsertMode. Press I. (Chen Hao Note: you will see the "-insert-" in the lower-left corner of vim, indicating that you can insert it)
NormalMode. PressESCKey.
InsertAndNormalSwitched. Below are some
Operating System: ubuntu (GNU/Linux)To set up an ftp server on the machine, we need to install the ftp server software. Representative ftp server software in Linux includes Wu-FTP, ProFTP and Vsftp.Wu-FTP (Washington University FTP) is developed by
In Linux, the dependency between software installation packages is a headache,
Yum can automatically download and install the RPM package from the specified server. It can automatically process dependencies and install all dependent software
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