Add two blog posts: Use of the vi Editor (1) use of the vi Editor (2)2. program editing in the vi Editor
This section describes several operations that can improve the efficiency of the vi editor in programming, including jump of the cursor,
I recently learned about Linux Shell and encountered a file redirection character. I thought it was useful and I sorted it out:
In shell programs, there are about three most commonly used FD types, with the following differences:
0: Standard Input
Today in the sourceforge page to find a text editing software, is a ApexText-1.2-platform-independent, the name of the view, suitable for the system platform irrelevant, in fact, only require your system to have java, but how to run the jar file?
Scim Google pinyin bug solution.
Because the use of Ubuntu, coupled with a lot of time do need to use Chinese characters, so the installation of scim Google pinyin, if you need to install please refer to the http://www.bkjia.com/ OS /201112/11512
In Linux, list operations are usually used. include/linux/list. h is a key file,
Below are several important Linked List Operation macros:
List_for_each_entry (pos, head, member)
Purpose: cyclically traverse member members in each pos
LVM hierarchy (bottom to top ):
Ext3-> lv (logical volumn)-> pv (physical volumn)-> vg (volumn group)
LVM creation steps (for example, creating LVM on/dev/sdb ):
1. format the hard disk: fdisk/dev/sdb
N: Create a new disk partition (which
First, let's talk about the environment: 2.6.33-rc4, arm9-running, 640*480
The basic idea is to delete the static ppm file from the kernel and put the generated array into the memory. The steps are as follows:
1. decompress the kernel and
Vsftpd virtual User Creation in two ways There are three methods to log on to FTP: Anonymous logon, local user logon, and virtual user logon.Anonymous Logon: use the default user name when logging on to FTP, usually ftp or anonymous.Local User Logon:
Applicable to students who use drcom to access the InternetIt took me two days. Let's talk about the process directly.1. Install ubuntu 10.10 correctly2. No matter what method you use, find the Network Information allocated to you by the school.Get
Tools:GCCLDMAKEUtil-linux (fdformat)Module-init-tools (depmod)Tune2fsJFS (IBM File System)ReiserFSXFS (SGI File System)Quota-toolsNfs-utilsUdev (udevinfo)PsThese tools are best compared with the Documentation/Changes file in the kernel source code
The Linux memory activity area is actually the area where the memory block in the global variable e820 has been checked and processed. It is useful in management zone initialization and other places. Data Structure Struct node_active_region
1. Preparations First, you have to install Ubuntu on your computer, and then perform the following work. You only need to copy and paste it. 1. Install the Git tool. Android source code is managed using Git tools. Compared with SVN, SVN is a
Multiple tomcat servers run on a linux server. Because the tomcat process names are "java", you cannot add them all as services, creates multiple soft links for java.The procedure is as follows:1. Establish a soft connection to javaLn-sf/opt/jre1.6.0
First, you must understand two special devices:/Dev/null: Recycle Bin, bottomless pit/Dev/zero: generate characters Test the disk write capabilityTime dd if =/dev/zero of =/test. dbf bs = 8 k count = 300000Because/dev // zero is a pseudo device, it
View current connections:Ps aux | grep httpd | wc-lPgrep httpd | wc-lCheck the average memory usage of httpd:Ps aux | grep-v grep | awk '/httpd/{sum + = $6; n ++}; END {print sum/n }'View the number of Apache concurrent connection requests and their
When you enter make in the terminal, the "makefile: 2: *** Delimiter is missing. Stop ." The problem occurs when you compile the makefile file:3: 3.cGcc-o 3 3.cThe Delimiter is a tab separator before gcc, and space is not allowed. Otherwise, the
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