Linux Command exercise: Case selection Structure Statement exercise

Practice One: 1, receive the parameter, prompt input parameter is what type:#!/bin/bash#program:#接收参数并输出参数类型#history Donggen 2016-10-27-17:20Path=/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin:/usr/local/sbin:~/banshExport PATHCase $ in[[:d

Linux command English full name

Su:swith user   switch users, switch to root user cat:concatenate   concatenation uname:unix name   system name Df:disk free   Spare hard drive Du:disk USA GE HDD Usage chown:change owner Change owners chgrp:change Group change user group Ps:process

Configure SECURECRT to log on to a Linux server using SSH public key

recently viewed Linux system logs: /var/log/secure, found that the server has a large number of violent crack login record, and is different IP account in the attempt to crack, so it is not good to write iptables to prohibit IP login (too much), and

Several common methods of port forwarding in Linux

0x00 backgroundPort forwarding is a common feature that needs to be used both in server operations and in the field of infiltration. In the recent encounter a problem is that a service port can not be configured, but because of the export hardware

"Dynamic Library" and "Static Library" in Linux system that Thing "turn".

Transferred from: http://blog.chinaunix.net/uid-23069658-id-3142046.htmlToday we mainly say that the Linux system is based on dynamic libraries (. So) and static (. A) programs that are tricky. Before we do that, we need to look at what magical and

Types of Linux file systems

Types of Linux file systemsTypes of File systemsBrother Lian LINUX Training Introduction -linux There are four basic file system types: Normal files, directory files, connection files, and special files, which can be identified by the file command.

Linux Mint Installation Tutorial

Today the main machine re-installed the system, replaced by Linux Mint 18, the following record the installation process:My machine is 8G memory, 1TB mechanical hard drive.First make the installed USB flash drive, open the UltraISO, select the Linux

Linux system Text processing the Three Musketeers of awk

GNU awk:Text Processing Three musketeers: Grep,sed,awkGrep,egrep,fgrep: Text Filtering tool: patternSed: line EditorPattern space, hold spaceawk: Report Generator, formatted text outputGawk-pattern scanning and processing languageBasic usage: gawk

The Linux log file function in the/var/log directory

Excerpt from: http://www.niaoyun.com/help/application/386.htmlLearning Linux should know where the log files are located and what they contain, and learning about these different log files while the system is functioning can help you to find and

Docker basic technology: Linux Namespace (top)

Guide Now the hottest technology is Docker, many people think Docker is a new technology, but in fact, Docker in addition to its programming language with go relatively new, actually it is really not a new thing, that is, a new bottle of old

Linux Task Scheduler

The Linux task plan is divided into two types: one-time Task Scheduler and a recurring task plan implementation tool primarily at and crontab the use of the Task Scheduler tool is described in detail below.1. At command one-time mission planThe AT

[Linux 005] -- IO redirection, linux005io redirection

[Linux 005] -- IO redirection, linux005io redirection When executing commands in Shell, we can see the execution result below the input command. The operating system outputs the execution result to the display by default. Of course, we can also

Distributed service coordination technology zookeeper series (1) & mdash; zookeeper introduction and linux installation (single node), zookeeperlinux

Distributed service coordination technology zookeeper series (1) -- Introduction to zookeeper and installation on linux (single node), zookeeperlinuxIntroduction to ZooKeeper ZooKeeper is a Distributed Coordination Service framework. It is usually

Vim configuration, vim configuration file

Vim configuration, vim configuration file 1. background description: The vim editor is a popular and powerful text editor in linux. Configuring vim can greatly improve code development efficiency. 2. configuration scheme: I searched on github for

Ubuntu14.04 build the LAMP environment and ubuntu14.04 build the lamp Environment

Ubuntu14.04 build the LAMP environment and ubuntu14.04 build the lamp Environment Preface I can't remember how many LAMP environments I have built, not only on windows, but also on linux. windows is good, and there are not many troubles, once I set

Seven Levels of linux running and seven levels of linux

Seven Levels of linux running and seven levels of linux Running level description 0. All processes will be terminated, and the machine will be stopped in an orderly manner. when the machine is shut down, the system will be in this running level. 1

Linux scheduled task and linux task

Linux scheduled task and linux task I am used to using windows scheduled tasks. It is not suitable for managing scheduled tasks using crontab in linux. The basic usage is summarized as follows.Create a simple scheduled task Output the current time

Linux _ disk management and linux disk management

Linux _ disk management and linux disk management I. linux disk management Ii. Actual operations [root@hadoop09-linux ~]# fdisk /dev/sdbDevice contains neither a valid DOS partition table, nor Sun, SGI or OSF disklabelBuilding a new DOS disklabel

Infinispan v8.2.4.Final is an open-source data grid platform.

Infinispan v8.2.4.Final is an open-source data grid platform.GuideInfinispan v8.2.4.Final is released and downloaded. In Alibaba nispan is an open-source data grid platform. It exposes a simple data structure (a Cache) to store objects. Although

It's amazing. virtual networks in Linux

It's amazing. virtual networks in LinuxGuideWith the rapid development of platform virtualization, it is not uncommon to virtualize other parts of the company's ecosystem. One of the most recent ones is virtual networks. In the early stages of

Total Pages: 5467 1 .... 626 627 628 629 630 .... 5467 Go to: GO

Contact Us

The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion; products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the content of the page makes you feel confusing, please write us an email, we will handle the problem within 5 days after receiving your email.

If you find any instances of plagiarism from the community, please send an email to: info-contact@alibabacloud.com and provide relevant evidence. A staff member will contact you within 5 working days.

A Free Trial That Lets You Build Big!

Start building with 50+ products and up to 12 months usage for Elastic Compute Service

  • Sales Support

    1 on 1 presale consultation

  • After-Sales Support

    24/7 Technical Support 6 Free Tickets per Quarter Faster Response

  • Alibaba Cloud offers highly flexible support services tailored to meet your exact needs.