Linux

There are many shortcut keys under CentOS, and the level of operation is higher when you master it.CTRL series:1.ctrl+c or ctrl+\ keyboard interrupts the request and decisively kills the current task.2.ctrl+z interrupts the current process, does not

Basic knowledge development process of Linux1.1 Computer server components1.1.1 The composition of the computer1) CPU2) Hard Drive3) Memory4) Power supply5) RAID CardCore responsibilities of 1.1.2 operation and maintenance1) Website data cannot be

Shell Programming Summary: The role of the shell history shell is to interpret the user's commands, the user enters a command, the shell interprets the execution of one, this is called Interactive (interactive), and the shell has a way of executing

(1) Download Linux system imageCent OS 7.2 64-bit system Image:Http://mirrors.163.com/centos/7.3.1611/isos/x86_64/CentOS-7-x86_64-DVD-1611.iso(2) Download Vmare Workstation10.0 virtual machinehttp://www.xiazaiba.com/html/24456.html the VMware key is:

Post ( BIOS) MBR boot (disc, disk) GRUB Menu (select kernel, usually only one kernel) Load kernel Run the init process and selectthe RunLevel ( the first running program for Linux) Read The/etc/inittab configuration file Execute

1. Automake compilationAutoreconf-isv. /Configuremake2. Remote Code AcquisitionRSYNC-APVR--exclude=*/log/* *.*.*.*::home/src.3. Building a soft chainLn-s. /.. /.. /word_segmentor/word_segmentor4. Create an empty fileif=/dev/zero of=/home/src bs=1m

It is found that the currently installed g++ does not have the option-std=c++11 enabled, and the new standard for c++11 and the list initialization in it cannot be used. Search after the solution: type: Alias g++= "g++-std=c++11", but this is

Linux Shadow file hack programParsing the contents of a password string in a shadow file   The ID is 1 o'clock and is encrypted with MD5; id is 5 o'clock and SHA256 is used for encryption; id

This warning is caused by the initialization order, The warning code will appear! Class Cinit { Public Cinit (std::string str, int a): Str_ (str), A_ (a) { } Private int A_; Std::string str_; };

Scenario 1: If the current disk has capacity to expandUnder Root, the "fdisk-l" Maximum partition is/dev/sda3, and the newly created latest partition is/DEV/SDA4Enter "FDISK/DEV/SDA""N" adds a new partition"P" creates a primary partition"Enter"

1. Please describe in detail the start-up process of the CentOS system (detailed to what each process system does)1) power-on self-test, BIOS boot-boot stage;In this process to implement the initialization of hardware and find boot media;Load the

1. InstallationThe installation and startup methods of the CentOS 7 Nginx are as follows # yum Install nginx# firewall-cmd--permanent--zone=public--add-service=http# firewall-cmd--permanent--zone =public--add-service=https# firewall-cmd--reload#

Linux user base, linux UserUnderstand users and groups in Linux     Practice: View user information   View user password information   View group information View logged-on users Practice: User addition, deletion, and

Shell printf command and shellprintf command Another Shell output command is printf. By default, printf does not automatically add line breaks like echo. We can manually add \ n. #! /Bin/bashprintf "%-10 s %-8 s %-4s \ n" name gender weight kg

Shell test command and shelltest commandThe test command in Shell is used to check whether a condition is true. It can be used to test values, characters, and files. Num1 = 100num2 = 100if test $ [num1]-eq $ [num2] then echo 'two numbers are equal!

Shell function,The following example defines a function and calls it: #! /Bin/bashdemoFun () {echo "this is my first shell function! "} Echo" ----- function execution started ----- "demoFunecho" ----- function execution completed -----"Output result:

Linux File SystemFile System   Format After using the fdisk command to create a partition, it cannot be used directly. You must format it first. In Linux, there are two formatting Methods: mke2fs and mkfs.     Practice: format the three

Nginx-related php for LNMP compilation and installation-graphic explanation,Nginx-related php for LNMP compilation and installation-graphic explanation 1. Preface I have already introduced the compilation and Installation Process of nginx, php, and

Man statd (rpc. statd Chinese manual), statdrpc. statd Rpc. the statd program mainly implements NFS lock-related content, such as common file locks (NLM, NSM), file delegation, and lease. However, note that, it can be combined with sm-policy to

Shell variable, shell variable value assignment First shell script #!/bin/bashecho "Hello World !" #! Is an agreed tag, which tells the system what interpreter is required to execute this script, that is, which Shell is used Save the above Code as