Delete Linux dependency libraries and enter rescue mode recovery

Simulate the dependency library file being deleted and restored in rescue mode System: CentOS7 1. Delete mv dependency library files Delete/lib64/libc.so.6 [root@centos7 Packages]# which mv alias mv='mv -i' /usr/bin/mv [root@centos7 Packages]# ldd /usr/bin/mv linux-vdso.so.1 => (0x00007ffd51946000) libselinux.so.1 => /lib ...

Posted on Fri, 11 Oct 2019 10:39:52 -0700 by nolos

linux Driver for Zyqn pl Interruption in Mill Technology

Zyqn pl interrupt I. objectives On the development platform of Miller Technology zynq, pl interruption is realized by zynq's key switch. Two. Analysis. Schematic diagram Hang on the pl side, need to be on vivado pin locking. The configuration is as follows Of course, the interruption function can be use ...

Posted on Fri, 11 Oct 2019 08:36:36 -0700 by cmanhatton

Combination, Packaging, Polymorphism

Catalog combination What is combination? Why use combinations How to use combination Combination exercises encapsulation What is encapsulation Why to encapsulate How to encapsulate Access Restriction Mechanism What is access restriction mechanism ...

Posted on Fri, 11 Oct 2019 06:56:36 -0700 by doforumda

Shell scripts -- regular expressions

The Concept of Regular Expressions Regular expression: Use a single string to describe and match a series of strings that conform to a certain syntactic ruleIt is composed of ordinary characters and special characters. It is commonly used in script programming and text editor, such as php, python, she, etc. It is abbreviated as regex, regexp, ...

Posted on Thu, 10 Oct 2019 22:24:58 -0700 by keyboard

[Solution] Kali Linux DHCP Automatic Access IP Failure VMWare Bridge

Links to the original text: http://www.cnblogs.com/blackblade/p/3688097.html root@kali:~# service networking restart [....] Running /etc/init.d/networking restart is deprecated because it may not r[warnble some interfaces ... (warning) ...

Posted on Thu, 10 Oct 2019 15:21:35 -0700 by balacay

Constructions of E and Isomorphism of Complementary Maps in the Multi-school Training Camp of Niuke in Summer of 2019 (Game 6)

https://ac.nowcoder.com/acm/contest/886#question Question: Whether there exists an undirected graph G with n vertices is the isomorphism of its complement graph H, if there exists an adjacency matrix of output G and the mapping of H with respect to G. Analytical and constructive questions, the answer is not unique. The original graph has the ...

Posted on Thu, 10 Oct 2019 11:30:23 -0700 by kirtan007

JGsoft RegexBuddy

awk 1. Common usage of awk Usually, the command format used by awk is as follows, where single quotation marks plus braces "{}" are used to set the processing actions for data. Awk can process the target file directly, or it can process the target file by reading the script "-f". By default, the field separator is a space o ...

Posted on Thu, 10 Oct 2019 10:17:51 -0700 by Chris 96 WS6

Shell Programming-Conditional Judgment

Conditional Judgment of Shell Programming Conditional test operation test command Test whether a particular expression is valid. When the condition is valid, the return value of the test statement is 0, otherwise it is another value. Format 1: test conditional expression Format 2: [Conditional expression] Document testing[Operator file or dir ...

Posted on Thu, 10 Oct 2019 02:57:36 -0700 by swissbeets

[Linux Services] vsftpd File Transfer Protocol

vsftpd file transfer protocol System environment: CentOS Linux release 7.6.1810 (Core) I. Brief Introduction ftp (File Transfer Protocol) is called Very Secure FTP Server. Vsftpd is the ftp server software running on linux operating system. - vsftp provides three login modes: 1. anonymous login; 2. local user login; 3. virtual user login T ...

Posted on Wed, 09 Oct 2019 17:11:35 -0700 by c_shelswell

Teaching Wife to Learn Common Command Guidelines for Linux Operations and Maintenance

Teach your wife to learn Linux (two) Linux frequently used command Guide Author: Yao Maomao's blog tips: The article is too long, and it is sent out in two chapters. The first three chapters are: 1. File and directory operation; 2. File viewing and editing; 3. File searching and statistics. [TOC] I. overview 1.1 Write in the front-Learning Gui ...

Posted on Wed, 09 Oct 2019 17:10:16 -0700 by the_damo2004