Linux

Android users generally know how to press the volume reduction and power keys on the screen at the same time. However, as a developer, it may be easier to save the screen to the development computer. You only need to execute a command on the

OpenCV2.4.6.1 Installation Process in Ubuntu 12.04: Summary of installing OpenCV 2.4.5 in Ubuntu 12.04 Install OpenCv2.1 in Ubuntu 10.04 1. Install the compilation environment and related libraries Sudo apt-get install cmake build-essential libgtk2.0

Use the if statement to determine parameters in shell programming[-B file] returns true if the file exists and is a block file-C: returns true if the file exists and is a character file.-D. If pathname exists and is a directory, true is returned.#

1. The last two parameters of sar are generally interval count. 1. sar-u 1 5CPU usage statistics are output once per second, with a total of 5 Outputs [Root @ stage1-new9 sysstat-10.0.5] # sar-u 1 5Linux 2.6.9-67. ELsmp (stage1-new9.intra99bill.com)

Vulnerability Scanning on Linux machines is the most important step to protect the security of our private data. In this article, I will teach you how to install, configure, and start Nessus on Ubuntu. What vulnerabilities are vulnerable to your

Organize some Linux commands I. File directory commands 1. Create a directory: mkdir directory name 2. Delete the empty directory: rmdir directory name 3. Delete the subdirectory unconditionally: rm-rf directory name 4. Change the current directory:

During the joint debugging of today's project, the configuration file cannot be correctly read, but the cat configuration file values are all correct. After a long time, I finally used the vi on the Development Board to open the configuration file,

The C language file pointer and file descriptor can be converted to each other: This is implemented through the fdopen and fileno functions. They are all included in the header file stdio. h. Fdopen prototype: FILE * fdopen (int filedes, const

1. First, download the Python installation package through wget[Root @ TDDBA ~] # Wget http://www.python.org/ftp/python/2.7.3/Python-2.7.3.tgz 2. decompress the file[Root @ TDDBA python] # tar-zxvf Python-2.7.3.tgz[Root @ TDDBA python] # lsPython-2.7

Sometimes when we execute a command, we prompt:[Root @ localhost ~] # Iptraf-Bash: iptraf: command not found I believe many of my friends will often encounter this problem.To solve this problem, you need to install the corresponding software package.

When the computer is started, the program in the BIOS first executes self-check. After the self-check is passed, find the Boot Loader program in the mbr of the first disk that can be started according to the CMOS configuration (usually in the first

Websites, music, videos, images, files, books, and other content on the Internet and on the internet play a crucial role in your IT life. In Ubuntu, you can easily install the open-source Chromium (apt: // chromium-browser) browser, which works with

At school, students using CERNET may know the mentohust software. I am a newbie in Linux and want to learn it recently. I also use mentohust in windows. Therefore, after installing Ubuntu12.10, I must also want to use mentohust, therefore, the

The following problems occur when using the yum command on the RedHat system:The reason "ThesystemisnotregisteredwithRHN" is that it is not registered on the RedHat network. The solution is to use the CentOS yum source.1. View and uninstall the yum

Installation and use: In Linux, you can use the retext tool to edit markdown: # Debian/UbuntuSudo apt-get install retextRetext Release-Notes.md To convert a markdown file to an html file, you can use the markdown provided by the discount or

12345678 [oldgirl @ c6 ~] $ Scp. ssh/authorized_keys test@10.0.0.182:/home/test/The authenticity of host '10. 0.0.182 (10.0.0.182) 'can't be established.RSA key fingerprint is 11: fa: 8b: 27: 68: 89: 5c: 83: b0: 16: ea: 4b: 8b: 41: 4b: 00.Are you

I always try to use the latest Ubuntu 13.10 system. The appearance of Ubuntu 12.04 is not changed much, but the details are slightly changed. Especially, the input method is not very easy to use. Therefore, we use the fcitx input method, the

The encoding character is not caused by UTF-8. So many software systems do not rely on general standards, so we have to use the so-called Chinese encoding. Almost all of the stuff downloaded by the shooter network is faulty. When you use Emacs in

As security issues become more and more important, the more secure passwords are (such as multi-step authentication), the more important this is. As a result, I recently tried several security password managers to find a secure, easy-to-use,

In Linux, scheduled execution is mainly performed by adding a custom plan to the crontab file. The settings are slightly more complex than those in Windows (because there is no graphic interface), but they are not very complex, the key is to