Linux

This blog updates the latest developments in the specific interpretation of Linux device-Driven Development (3rd edition). 2015.2.26 nearly finished the first draft.This book has been rebase to the Linux 4.0 kernel in development, with most cases

Linux File System Operations CommandFile System Operations Command:1. Cat: You can display the contents of a file (often with more), or combine multiple files into one file.2. CHGRP: Used to change the user group to which the file or directory

Not namedReceived the need to convert AMR to mp3,windows under the Linux environment directly using the third party jar package Package EXE method can be, but does not support Linux, the internet climbed the data said to be using FFmpeg plus AMR

creating, modifying, and deleting user accounts under the Linux system character interface mainly uses the 3 commands of Useradd,usermod and Userdel.I. Create a user accountCreate a user account is to create a new account in the system, and then

The system calls DUP and dup2 to copy the file descriptor. The DUP returns a new file descriptor (the smallest number that is not used by the file descriptor). Dup2 can let the user specify the value of the returned file descriptor, and, if

First, signal and signal sourceSignal EssenceThe signal is a simulation of the interrupt mechanism at the software level, in principle, a process receives a signal that the processor receives an interrupt request can be said to be the same. The

SUSE Linux Enterprise Serve 12 Trial Experience650) this.width=650; "title=" clip_image002 "style=" border-top:0px;border-right:0px;background-image:none;

Although many Linux distributions, such as Ubuntu, are now largely available in the GUI to accomplish most of the general tasks. However, the terminal program is still essential for Linux users.Gnome's gnome-terminal is good, simple, easy to use,

-bash:warning:setlocale:lc_ctype:cannot change Locale (en_US. UTF-8) The following error occurred after setting the English character set of the Linux system from Chinese first the system character set is Chinese utf-8[[email protected] ~]# more/etc/

POSIX read-write lock int Pthread_rwlock_init (pthread_rwlock_t *restrict rwlock, const pthread_rwlockattr_t *restrict attr); int pthread _rwlock_destroy (pthread_rwlock_t *rwlock); int Pthread_rwlock_rdlock

Guake Terminal-the perfect and handsome Terminal in linux, guaketerminal Although many Linux distributions, such as Ubuntu, can basically use GUI to complete most general tasks. However, terminal programs are still essential for linux users. The

Modify the ssh port in Linux and disable remote root logon. Modify the ssh port and disable remote root login in Linux We all know that the default ssh port number is 22. To change the port number to 9688, You need to edit the/etc/ssh/ssh_config and/

The firewall-cmd command in CentOS 7, centosfirewall-cmd In CentOS 7 Ftp service is currently available# Firewall-cmd -- add-service = ftpPermanently open ftp service# Firewall-cmd -- add-service = ftp -- permanentPermanently close# Firewall-cmd --

Linux software package management, linux software package Linux software package management There are two main types of Linux software package management: Binary Package management and source code package management. Install-- Ivh:-v,-vv,-vvv: the

Job Management in Bash and bash job Management I was not prepared to write this blog, because Task Management (job Management) is very common, so I feel that there is no need to write such a thing. But if you think about it, record it. Maybe someone

Compile and install perl (5.16.1) in CentOS) First download the latest perl source code package: [Root @ akinlau/] # wget http://www.cpan.org/src/5.0/perl-5.16.1.tar.gz Decompress the source package[Root @ akinlau/] # tar-xzf

Initial ZooKeeper and cluster creation instance What is zookeeper? Zookeeper, a collaborative service for distributed applications, is an open-source implementation of Google's Chubby and a Distributed Coordination Service of Hadoop. It contains a

Source code analysis of Zookeeper: Watcher Mechanism 1. Set WatcherTo use Watcher, you must first implement the Watcher interface and pass the implementation Class Object to the specified method, such as getChildren and exist. Zookeeper allows you

OpenMeetings installation for Open-Source Video Conferencing Systems in Linux 1. Introduction to OpenMeetings Red5 is a free and open-source Flash Streaming Media server Based on JAVA. It is the best open-source software to replace the open-source

Install Oracle 11g in CentOS 6.5 I recently started to learn how to use CentOS and make some records. References: Install Oracle 11g in Cent OS 6_5 (x86_64) I. Hardware requirements 1. Memory & swap Minimum: 1 GB of RAMRecommended: 2 GB of RAM or