Test
InputrebootCommands andshutdownCommand:
$ sudoreboot
#reboot
$ shutdown-h 0
#sudoshutdown-h 0
### running wrong command such as follows instead of
### sudo virsh reboot vm_name_here
$ sudoreboot vm_name_here
Result:
Fig.02: Molly guard saved my butt ;\)
I like molly-guard very much. Therefore, I add downstream contentapt-debian-ubuntu-common.ymlFile:
- apt:
name: molly-guard
Yes. I used Ansible to automatically install it on all Debian and Ubuntu servers.
Related: My 10 maj
Date: 2009.5.8 Friday
Content: Unix standardization and implementations (UNIX standardization and implementation)
I. Partial abbreviation
Anis: American National Standards Institute
ISO: International Organization for Standardization International Standardization Organization
IEC: International Electrotechnical Commission International Electronic Technology Commission
Ii. header files defined in ISO C
} Nd"This will print: This is the 2ndMany variables are automatically set by the system, which will be discussed later when these variables are used.If you need to process mathematical expressions, you need to use programs such as expr (see below ).In addition to the shell variables that are generally valid in the program, there are also environment variables. Variables processed by the Export keyword are called environment variables. We will not discuss environment variables, because generally,
, no one will take care of you.
For more information about cb commands, use man cb to refer to its manual page.
Of course, apart from cb, there are more and better. But cb is what you can find on any UNIX (LINUX). What's more, it is not bad.
Chapter 3: Start a task
Take a deep breath before starting the task!
[] Are you ready for other documen
Install Mysql and windowmysql on Linux/UNIX and Windows Platforms
For Mysql on all platforms: Download MySQL. Select the MySQL Community Server version you need and the corresponding platform.
1. Install Mysql on Linux/UNIX
On Linux, we recommend that you use the RPM package
use, and for TCP and UDP, the workflow is exactly the same as the network socket above.So, let's take a look at how to create and use our Unix local sockets through these APIs, and what the difference is between them, and then experience it through a simple sample program. Creating Sockets
The first is the creation of the socket. Also use the socket () function.
But its first argument domain is no longer af_inet or pf_inet, but Af_unix, which repre
Find a very detailed Linux shell script tutorial, in fact, not only the shell script programming, but also introduced the system of various commandsHttp://vdisk.weibo.com/s/yVBlEojGMQMpvThis book is divided into five parts, in detail the shell programming skills, a variety of UNIX commands and syntax, but also related to UNIX
OrderThe process communication methods under Linux are basically inherited from the process communication methods on the UNIX platform. The two main players at T-Lab and BSD (UC Berkeley's Berkeley Software Release Center), which have made significant contributions to the development of UNIX, have a different focus on interprocess communication. The former makes
10.222.1.34
4. user permission management commands in linux
Ctrl + alt + (F1-F6) character Interface
Ctrl + alt + F7 exit character Interface
Ctrl + alt find the mouse
Whoami view current user name
Who-q view users
Ssh remote login
After ping, log on to another computer using the ssh command.
Format: ssh username @ IP address exit
Useradd: Add a user account
Switch to supermanager mode in
server. So I ran the following:chmod 0000 /downloadsRoot users still have access, while the LS and CD commands do not work. To restore it by:chmod 0755 /downloadsPassword-protect files in vimAfraid of the root user or someone else spying on your personal files? To try a password protection in vim, enter:Vim +x filenameAlternatively, use the: X command to encrypt your file before exiting Vim, and Vim will prompt you to enter a password.Clear garbled o
The previous article, I said, windows in order to change the user to its console interface, and then start from Windows Vista, plan to change this situation, so there isThe advent of PowerShell.1. Compatible Shell commandsTo be compatible with Unix/linux shell (mainly bash) commands, PowerShell provides a set of mechanisms for compatibility with Cmd.exe and bash
under the use of Linux/unix, often use the text interface to set up the system or operating system, the author himself in the process of work is also constantly in touch with this command, so for This special brewing, preparation, began the writing of this article. This paper mainly records some of their usual linux/unix
Reprint: http://www.toxingwang.com/linux-unix/2027.htmlSAR is a common performance reporting tool for Linux and UNIX, and the common command combinations are as follows:Common formats for the SAR command line:
SAR [Options] [-A] [-o file] t [n]
SAR [Options] [
In the command line, the N and t two para
Stevens's UNIX Network programming Volume 1: Socket Networking API is a well-known UNIX network programming book. The use of a unp.h reference, if not set up the corresponding library, even if the introduction of the header file is useless. So first you have to configure the appropriate library.
Basic Environment:
Operating system Debian
Development environment Gcc,make, and so on, first of all have C compi
As Linux quickly replaces the server platform with the Unix,unix veteran, there are a number of differences between Linux and UNIX.The idea behind any UNIX version is that the vendor provides all the full service to the customer. Software development in a
(1) linux beginners: linux concepts and Common commands, common linux commandsLinux introduction:
Linux is a free, free, and open source operating system. It is also the most famous example of open-source software. Its main purpose is to establish a
2016.8.19 17:20-17:50HP-UX is based on System V and are tied to Hewlett-Packard ' s hardware platforms. It ' s closer to the ancestral source tree than either Solaris or AIX, but HP have kept pace with developments in the OS worl D and have added a variety of its own enhancements. Now that HP have begun supporting Linux as well, the future of HPUX was somewhat less clear.HP- UX is based on system V and is used only for HP hardware platforms. It is clo
Landlord rookie, from the "Linux/unix system Programming Manual" to learn, learn the procedure must first run the example to play, but did not know how to do 1 hours in the book example how to run, Baidu does not come out, casually dozen a make order drink a cup of water, found out a xx.a file, the problem solved. Take out and share with you, don't like to Spray, O (∩_∩) o haha ~
Environment: Win7 under VM
script engine. Therefore, it is troublesome to make a daemon process, today, we will use Unix/Linux commands to implement the functions of our daemon process.
[Principle] the nohup command in Unix is used to run the command without hanging up. at the same time, nohup puts all output of the program to the nohup in the
This article describes the simple principle of ODBC and how to install, configure, and program ODBC in LinuxUnix. I. ODBC principle ODBC is OpenDatabaseCo
This article describes the simple principle of ODBC and how to install, configure, and program ODBC in Linux/Unix. I. ODBC principle ODBC is Open Database Co
This article describes the simple principle of ODBC and how to install, configure, and progr
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