Linux

How to recursively count files in a Linux directory? Find Dir_name-type F | Wc-l Find Dir_name-type F-print | Wc-l Find include alias of the string *.conf of the fileFind/-name "*.conf" | Xargs grep "Alias"1. grep-r-L Some can also

Serial port is a computer on a very general device communication protocol, commonly used PC contains RS232 specifications of the serial port, with a few connections, simple communication, has been widely used.Linux access to all devices through the

The previous blog introduced in the single-machine environment of the puppet application, this time we based on the C/S model to introduce the next puppet!First, the experimental environment Server role IP Address Installing

Windows Server R2 support for Linux is becoming more and more SCVMM2012 R2 deploying Linux (such as CentOS) is more valuable, such as supporting dynamic memory, running more efficiently, and so on. There's a big difference between deploying Linux

MATLAB Linux Chinese display problem solving method 2011-09-26 17:07:06  |  Category: default Categories | Tags: | report | font size big medium small SubscribeHere's how you try it! Because the GUI of MATLAB is written in Java, so long

Differences and connections The biggest difference between Linux and UNIX is that the former is free software for source code development, while the latter is a traditional commercial software that implements intellectual property protection for

When an organization adds applications and services, centralization of authentication and password services can increase security, reduce management overhead, and reduce the burden on developers. However, clustering all services on a single server

On October 14, October 11, the father of Linux and the Finnish linness towoz released the latest kernel of the Linux open-source operating system. According to foreign media reports, on Tuesday, towoz posted in the Linux Kernel mailing list that

USB flash memory storage device (USB flash drive) is lightweight, exquisite, easy to use, easy to carry, and other advantages. In particular, compared with a floppy disk, it features large capacity, high security and reliability, and fast reading

Do you want to safely overclock your Raspberry Pi? This article will teach you how to achieve high frequency. There are also some other articles about how to overclock, but I have never tried it. So after doing some experiments, I found the correct

SSH: a secure channel protocol used for remote logon and remote replication on the Character interface (TCP port 22 is used ). The SSH protocol encrypts the data transmission between the communication parties, including the user password entered

We all know that Linux does not support the NTFS partition type by default, but if your computer is a dual system, it is a pleasure to make Linux support the NTFS partition! In this way, you can easily ask the information on the Windows disk, or

VirtualBox is often referred to as Vbox, which is smaller, open-source, and faster than VM. However, after using VirtualBox to install CentOS in a virtual machine, you cannot directly run the client enhancement function installed with VirtualBox.

As a DBA, dbca and netca images must be used to create databases and listeners when creating an Oracle database (if you use a script to create a database ), if you are in good health, you can complete the database creation process in the trembling

In Windows, disk fragmentation is a common problem. If you do not pay attention to it, the system performance may be eroded. Linux uses the second extended File System (ext2), which processes file storage in a completely different way. Linux does

ImageMagick (TM) is a free software for creating, editing, and merging images. It can read, convert, and write images in multiple formats. Image cutting, color replacement, application of various effects, image rotation, combination, text, straight

In Linux HA Cluster, high availability is not the high availability of hosts, but the high availability of services. What is high availability? A server may be down in a variety of ways, and any failure may lead to risks. The cost of server offline

Mount iSCSI configuration on CentOS 6.4 1. Install the iscsi support package and start the service.Yuminstall binutils iscsi-initiator-utils kmod-xfs xfsprogs Service iscsi start2. log on to Network StorageIscsiadm-m discovery -- type sendtargets --

High Availability is divided into three layers: 1. Implementation of the underlying information layer:HeartbeatCorosyncCman2. Resource Management, implementation method:Heartbeat-V1: haresourceHeartbeat-V2: crmHeartbeat-V3: pacemakerRHCS:

Some time ago I wrote an article on using rsync for batch update in Linux. I can see that there are still a lot of windows servers in online gaming companies. Today I will talk about the batch update method in windows, using cwRsync to synchronize