Linux gets the current date and date suffix accurate to microseconds, for example 2017-05-06t23:57:07.713171

The code is as follows: see note for details#include #includestring.h>#include#includeintMain () {structtimeval start; structTM *local_time =NULL; Static Charstr_time[ -]; Charms[ -]; Gettimeofday (&start, NULL);//Gets the current time, the struct

Introduction to the Linux system directory structure

Reference blog: http://www.cnblogs.com/chensiqiqi/p/6243549.html Thank Yumbo Lord for learning Linux for me to specify the direction!!Linux directory: Everything starts with "root", "/" is the starting point of all directories (fixed point)Linux

Linux Common commands

People who have used Linux will know that there are really a lot of commands in Linux, but people who have played Linux have never bothered by the fact that Linux commands are so many, because we only need to master the commands we use most often.

Linux Command summary: SED

DescriptionSed stream editor for filtering and converting textYou can use regular matching, insert and delete text, and so on.When SED is processed, one line is processed at a time, each time the current processing is stored in a temporary buffer,

Fedora 25 file comparison, table of Contents comparison tool--meld--linux Platform comparison tool

When working with files, you often encounter two very similar files that need to be compared and modified. Meld is a tool that specializes in this work. meld is a visual diff and merge tool. Meld is a Linux software that allows users to compare 2 to

Make a little progress every day the relationship between the file description descriptor and the open file in--linux

Reprint please indicate source: http://blog.csdn.net/cywosp/article/details/389652391. OverviewIn the Linux system, everything can be considered as a file, and the file can be divided into: Ordinary files, folder files, linked files and device files.

The relationship between Umask value and file and directory permissions in Linux

umask values and permissions for files and directories 1.1-r parameter Setting directory permissions (chmod)650) this.width=650; "src=" Https://s1.51cto.com/wyfs02/M00/92/E8/wKioL1kE0rqgJo_gAAJVm7FRtqw248.png "title=" QQ picture 20170429225829.png

[Linux] Basic commands and directory structure in Linux (first draft)

Basic commands and directory structure directories in Linux First, the Linux basic directory structure II. basic Commands Third, browse the directory Iv. Intermediate Command Five, change the password VI. environment

[Linux] Basic commands and directory structure in Linux (pending removal)

Basic commands and directory structure directories in Linux First, the Linux basic directory structure II. basic Commands Third, browse the directory Iv. Intermediate Command Five, change the password VI. environment

Key mode login for SFTP configuration under Linux

VSFTP is transmitted in clear text, the user name password can be captured by the packet, for security purposes, use SFTP, lock the directory and do not allow SFTP users to log on to the server. Because SFTP uses the SSH protocol, it is necessary to

Linux File Lookup

Find related commands on Linux systems: Which viewing the location of an executable file Whereis viewing the location of a file Locate to view file locations with a database Find actual search hard disk query file name

Openvas:kali Vulnerability Assessment tool in Linux

This tutorial will cover the process of installing OpenVAS 8.0 in Kali Linux. OpenVAS is an open source vulnerability assessment program that automates network security audits and vulnerability assessments. Note that vulnerability assessment

A simple way to learn commands in a Linux system

If you say how to quickly learn and understand Linux , my answer is to learn command, back command! Why is it? For a novice, to learn the idea of Linux , understand the architecture of Linux, understand the "All Files" concept in Linux , although

Ways to find hidden files in Linux using the Find command

We can use the Find command on a Linux or Unix system to query all (all) hidden filesThe basic syntax is as follows:Copy CodeThe code is as follows: [[email protected] ~] #find/To find the article/Piece/clip/-name ". *"-printExplain:1. ". *"

Basic commands for Linux

#文件夹与文件操作 pwd LS CD mkdir CP MV RM file/*{{{*/I. PWD displays the absolute path of the current working folder (the path represented by/to the starting point)Eg:pwd#选项-P Show link file pathTwo. ls display folder under Files and foldersAbility to take

Write your own two Linux materials, free download, PDF document

The first one is a note of the Linux video that I wrote about the Hanshunping teacher's commentary, which was originally 21. But I still did not find the 17, 18 said. But the other parts I feel and record are pretty serious. This set of video

Openvas:kali Vulnerability Assessment tool in Linux

This tutorial will cover the process of installing OpenVAS 8.0 in Kali Linux. OpenVAS is an open source vulnerability assessment program that automates network security audits and vulnerability assessments. Note that vulnerability assessment

A simple way to learn commands in a Linux system

If you say how to quickly learn and understand Linux , my answer is to learn command, back command! Why is it? For a novice, to learn the idea of Linux , understand the architecture of Linux, understand the "All Files" concept in Linux , although

Linux Configuration Step-up installation of LNMP environment----GHJ

Front Desk: Nignx backstage: Apache"Linux Command"UserFile directoryStartScheduled tasks:"Open RZ Command"Yum-y Install LrzszFirewallFirewall configuration file:/etc/sysconfig/iptablesService Operations Command:/etc/init.d/iptables service iptables {

Linux Beginner's array and if statement for loop

ArrayVariable: memory storage space;Variable characteristics: Only one data can be stored in each variable, the variable can only be assigned onceAn array of contiguous memory spaces that hold one or more elements, or a collection of multiple

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