I. Operating System Fundamentals Operating system concepts: procedures for coordinating, managing, and controlling computer hardware resources and software resources The operating system consists of the kernel of the operating
Linux network devices are different from character devices and block devices, and no files correspond to network devices. The application operates the network device through the socket.The network device driver belongs to the data link layer,
Connect to the Linux virtual machine learning environment Build-Virtual machine Create "click" to open this virtual machine, enter the system installation interface.650) this.width=650; "Src="
Alias, clock, simple commands, bash shortcut keys, helpAlias definition aliasesDefines the alias name, which is equivalent to executing the command valueAlias Name= ' VALUE '1650) this.width=650; "Src=" https://s2.51cto.com/oss/201711/20/6677cb588a13
Tag: Row ext uses RAS get Jason to manipulate pattern hisIt feels so foolish to press the author, I still put the things I feel goodDisplay the current time in a specific formatThe following methods can be used to display the current time in a
This series comes from "Linux 101 hacks", the author also wrote other 101 hacks tutorials, read a few chapters, think skills are also good, very practical, do a summary collection.CdpathSet the base directorypwd/home/ramesh[[email protected]-db ~]#
Through the previous two blog we introduced the Linux system user management, Linux users and user group management of the relevant configuration file to explain the user management of the relevant configuration files, including user information
First, &At the end of a command, you can put this command in the background to execute, asWatch-n sh test.sh & #每10s在后台执行一次test. Sh scriptTwo, CTRL + Z (the task is placed in the background and in a paused state)You can place a command that is being
Reprint Please specify source: http://www.cnblogs.com/blazer/p/7808639.htmlA more general method, all the system has been encoded, all the conversion, from the results to filter the encoding you need.If you execute: SH test.sh t1.csv, the
We generally use the "date-s" command to modify the system time. For example, the command to set the system time to June 10, 1996 is as follows.#date-S 06/10/96The command to set the system time to 1:12 P.M. 0 seconds is as follows.#date-S
First, Introduction1. Core compositionELK Consists of three parts: Elasticsearch,Logstash and Kibana ;Elasticsearch is an open source distributed search engine, it features: distributed, 0 configuration, automatic discovery, Index auto-shard, index
Niche Blog: http://xsboke.blog.51cto.comNiche Q q:1770058260-------Thank you for your reference, if you have any questions, please contact I. Introduction of Aide1. Role2. Principle3. InstallationIi. introduction of aide DocumentsThree, aide
Linux copies all files in the specified directory to another directoryCopy all files in the specified directory to another directoryThe copying of files and directories is often used. The commands for copying under Linux are CP.Assume that the
This article is reserved for your usual use.Reference article:Linux kernel tcp correlation parameter explanationHttp://os.chinaunix.net/a2008/0918/985/000000985483.shtmlLinux kernel parameter optimizationHttp://blog.chinaunix.net/uid-29081804-id-3830
User and Group ManagementWhy should I have user and group management?For Security and task assignment (identity authentication)Form:AAA (Cisco developed and established):1, Authentication (authentication): Verify that the user can gain access.2.
ctrl+z/bg/nohup/setsid/&In Linux, if you want the process to run in the background, in general, we'll add & after the command, in fact, this is putting the command into a job queue:./rsync.sh JobsHowever, if the process is executed above the
One, Linux jobs and prioritiesIi. ICMP and FTP-related commandsThird, tracerouteIv. tcpdump one, Linux jobs and prioritiesNice job FG BG Nohup ReniceJobFront-end operation (foreground): Starts with terminal and occupies terminal after
In the work and daily programming often need to determine the size of the file, some basic view of the way to do a summary.A. Linux shell EnvironmentDF can view the first-level folder size, usage scale, file system and its hang-in points, but there
In Linux, the nature of multithreading is still the process, and it differs from the process:Process: Independent address space, with PCBThreads: There are also PCBs, but no separate address space (shared)Features of the thread:1, the thread is a
What is the?This are meant for developers, need to port existing. NET Framework code to. NET Core. But before your start porting, you should understand, and what's want to accomplish with the migration. Just porting to. NET Core because it's a new.