Linux

The Linux uptime command is primarily used to obtain information such as host uptime and query Linux system load. The uptime command used to show only how long the system was running. Now, you can show how long the system has been running, the

Linux View System Status commandIostatThe Iostat command shows the storage subsystem in detail. You typically use Iostat to monitor the overall health of the storage subsystem, and to detect slow input/output problems before the user notices that

Alarm tone Alarm time can be set via Setterm-blength 0, 0 means no beepYou can also set the frequency of beep tones (Hz) via Setterm-bfreq 10If set directly from the command line, the current will take effect, but after a reboot, the settings will

Device block, inode, file nameFirst, what is the inode?To understand the inode, start with the file storage. The file is stored on the hard disk, and the minimum storage unit for the hard disk is called "Sector" (Sector). Each sector is stored 512

Wake up in the morning find the Linux hostname changed to BogonBogon refers to addresses that should not appear in the Internet routing table.These addresses should include:1, private address such as 10,172.16-32,192.168 .....2. Address not

650) this.width=650; "Src=" http://note.youdao.com/yws/public/resource/8303990b8cf2e1173cd47a10f4ccb25c/ c8629e9f27f249df95041f941986043b "style=" margin-top:8px;height:290.634px;width:800px; "alt=" c8629e9f27f249df95041f941986043b "/>Base ViewFirst

Text lookup: grep egrep fgrepFile Lookup: Locate, findThe difference between locate and findLocate has a self-maintained database (Linux self-built, associated with all files), Linux will periodically update it every day, and locate in this database

The CPU reads data from main memory and controls and calculates it through a micro-instruction set. The data in the main memory is transmitted from the input unit, and the data processed by the CPU must be written back to the main memory first, and

Vamei Source: Http://www.cnblogs.com/vamei Welcome reprint, Please also keep this statement. Thank you!There is always a draft of "Linux command" in the manuscript box of the blog, which records some common Linux commands, which are used for

RM: Delete command preface:Delete command in Windows Everyone is not unfamiliar, the removal command in Linux and Windows have a common feature, that is dangerous, the first two Linux mkdir command detailed and use the actual combat "beginner" we

We all use a general account to log into the system, but how to make the general user into a root user, there are two ways:(1) SU: This command must have root password.(2) sudo: This command only has its own password, but it has to be set.One. SuAny

Pwgen generated passwords are easy to remember and fairly secure. Technically, easy-to-remember passwords are no more secure than randomly generated passwords. However, in most cases, the password generated by Pwgen is secure enough to require a

one, multi-threaded VS multi-processThreads have many advantages over the process. Under the Linux system, starting a new process must be assigned to its own address space, creating numerous data tables to maintain code snippets and data. While

Install git, sublime, nodejs, and gitnodejs in ubuntu It uses a VM of the VMware10.0 version. It was directly used since it was downloaded a long time ago. It is easy to install and remember to use a serial number. Here: The

Linux Nginx installation details, Linux Nginx Installation DetailsThis article is personal originality and will be updated in real time in the future based on the project practice. If it is reproduced, please indicate the source for your convenience

Practice ArcGIS Web 3D Many users of the ArcGIS product family have been waiting for the Web 3D function for a long time. Starting from ArcGIS 10.3.1, Esri has made a big move to develop the Web 3D function, finally, I don't have to hide my face. So

[Switch] Introduction to Samba server configuration in Linux: samba Server Configuration Link: http://blog.chinaunix.net/uid-23069658-id-3142052.html Note: samba is mainly used for accessing files between the Internet and ftp over the LAN. Reprinted

Shell script structure Example 1, shell script example Since 2013, I have been lazy and have written a lot less. This year, I plan to summarize my previous accumulated experience. Start with shell.   After nearly three years of game O & M, I often

I/O models and five models  1.1 five I/O models 1) blocking I/O 2) non-blocking I/O 3) I/O multiplexing 4) event (signal)-driven I/O 5) asynchronous I/O  1.2 Why do we need to initiate a system call? Because the process wants to obtain data in the

Open-source Swift running on Linux platform Swift is open-source. After Xi Da Pu Ben, we found that it has now become cross-platform. The open-source Swift not only can run on MAC and iOS platforms, but also on Linux platforms. Now let's take a look