Installation of Firefox flash plug-in Linux
Firefox does not includeFlash_player,
GenerallyWhen the flash web page is opened, a prompt is displayed for installation.Flash_player plug-in,
Follow the prompts of Firefox to goAdobe website
ArticleThe http://blog.csdn.net/zklth/archive/2010/09/28/5912785.aspx introduces the use of centos default systemtap, Here introduces the use of systemtap source code independent installation systemtap.
Source code
Systemtap:
Ace Program Development in Windows and Linux
(1) Ace Program Development in Windows
Tool: VS 2005 ace
(1) Development Environment Settings
(A) Open VS 2005, tool --> Option --> project and solution --> VC ++ directory
Add the following
0. view the file encoding. UseFileCommand
[Root @ gm15vm02-hvm xenoprof] # file xenoprofile.install.txt
Xenoprofile.install.txt:ISO-8859Text
Lang = zh_cn.gb18030 when writing the file, encoding should be gb18030, here shows the ISO-8859, it should
The usage of diff and patch is always unknown.
Mark it here
Diff [Options] oldfile newfile[Options]-R: recursive option, including subdirectory files-U: Creates patch files in a unified format. The standard format is used.-N: Correct Handling of
Linux has a set of rules to name every shared library in the system. It specifies that the file naming rules of the shared library must be as follows:
Libname. So. x. y. Z
The prefix "lib" is used at the beginning, the Library name is in the
Most UNIX operating systems have V nodes. But for Linux, there is only a general I node, but no v node.
Next we will discuss the I nodes in Linux.
--------------------------------------------------------------------------------
In Linux, file search
MAN: manual refers to the manual. You can use this command to query the usage of other commands.
PWD: Print working directory indicates a password.
Su: Switch the swith user to the root user.
CD: Change directory switch directory
Ls: List Files
PS:
When you are not familiar with it, the following error is reported:
Com. mchange. v2.c3p0. impl. c3p0implutils-failed to get local inetaddress for vmid.
This is unlikely to matter. At all. We'll add some extra randomness
Java.net.
The most popular graphic operating software in Linux is VNC. Just like the mstsc Remote Desktop in windows, most Linux releases contain the VNC Server Release package, run the rpm-Qa | grep VNC check. If no, download the RPM package and install it.
1
The initial space (-XMS) is 1/64 of the physical memory, and the maximum space (-xmx) is 1/4 of the physical memory.
You can use options such as-xmn-XMS-xmx provided by JVM to set
Example:Java_opts = "-server-xms800m-xmx800m-XX: permsize = 64 m-XX:
Static Library: load the program during compilation. the executable program is large in size. It is generally named libxxxx..
Dynamic library: It is loaded when the program is running, and the executable program is small in size. It is generally
Generally, after writing the code in Windows, the company will compile and debug the code on Linux that is uploaded to the virtual machine, which is very troublesome.
The following uses a solution to complete all my work in Linux.
1. Install
1. Find in files:
Grep-R "str" dir; but I never used this.
Generally used:
Find | xargs grep "str"; good compatibility
2. List Files:Ls-LRT
3. delete files:Rm-RV [F]Find.-Name "\. Test. *" | xargs Rm-RF; delete all files starting with. test under
I started to explore at the door just three days ago. Please correct the following contentAccording to the online resource introduction, the successful telnet login to the small I, but found that the shell only has one Ash, It is very uncomfortable
Linux Kernel compilation and perfctr module Installation
Requirement Description
Papi is required to obtain hardware-level data, that is, data related to micro-commands, such as L1/L2 cache miss, TLB miss, and cycle. Papi requires perfctr
Introduction to Papi
Papi (performance Application Programming Interface) is an API that can be used to access data of CPU performance counters and Performance performance counters,
For example, L1/L2 cache, CPU cycle, CPU instruction, TLB,
Various features are now enabled or disabled at runtime Based on Kernel versioning, and support for the perf-Counter Interface in Linux kernel 2.6.31 has been deprecated in favor of the perf-events interface in kernel 2.6.32 and above.
Linux 2
Several machines with the same configuration and the same operating system have been installed. Now we need to update the kernel on all machines. We can compile the kernel on one platform, then copy the related files to another machine:
The
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.
A Free Trial That Lets You Build Big!
Start building with 50+ products and up to 12 months usage for Elastic Compute Service