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1, Explain The core of the blockchain network is the distributed ledger, which records all transaction information in the network. Hyperledger Fabric is an open source, enterprise level, authorized distributed ledger solution platform. Hyperledger Fabric is supported by modular architecture and has excellent confidentiality, scalability, fl ...

1, Linux system basic instructions and text editor 1. Basic instructions of Linux system 1.1 shutdown and restart (1) Shutdown: 1.shutdown -h //Turn it off immediately 2.shutdown -h 5 // Shutdown in 5 minutes 3.shutdow -h 20:25 //Shut down at 8:25 p.m 4.poweroff // Turn it of ...

Shell variable Use a fixed string to represent unfixed content Type of variable Custom variable Defining variables: variable name = variable value. Variable names must start with letters or underscores and are case sensitive (example: ip1=192.168.2.115)Reference variable: $variable name or ${variable name}View variables: echo $vari ...

1, Overview 1. Concept 1) What is a shell: shell It is a command interpreter, which is at the outermost layer of the operating system. It is responsible for directly talking with the user, interpreting the user's input to the operating system, processing various operating system output results, and outputting them to the screen for feedb ...

preface We will show you a go zero micro service example in detail through a series of articles. The whole series is divided into ten articles, and the directory structure is as follows: Environment construction Service splitting User services Product service Order service (this article) Payment services RPC service Auth authen ...

0 background This article is summarized in the git tutorial of gitcode. 1 History In order to manage the code merging of the Linux system, Linus Torvalds used the distributed version control system BitKeeper at the beginning. Since the permission is withdrawn later, Linus firmly opposes CVS and SVN (although it is free, it is not only sl ...

The tools hidden by programmers can easily realize project development. A command initiates Merge Request project code submission and consolidation, and the Code View reviewer can be specified. In the development of the latest git project, the merge request tool is launched with one click to automatically identify the local environment. It sup ...

Command basic format command prompt [root@localhost ~]# root: represents the currently logged in user.Localhost: short host name of the current system (use the "hostname" command to view the full host name: localhost.localdomain)~: represents the current directory, the tilde represents the home directory, the super user home ...

I Format of shell script file shell script file generally consists of three parts: interpreter, command code and comments. [root@server ~]# cat test #!/bin/bash <<notes Here are multiline comments notes echo 'hello world' # Here is a single line comment echo valar morghulis [root@server ~]# sh test hello world valar morghulis The fi ...

1. ls command It is the abbreviation of list. Through ls command, you can not only view the files contained in the linux folder, but also view the file permissions (including directory, folder and file permissions) View directory information, etc. ls -a List all files in the directory, including.Start hidden file ls -A List Division.an ...