Linux

First, it is necessary to state that the new kernel has already adopted Vb2_queue and Vb2_buffer Replace the Videobuf_queue and videobuf_buffer that are often used in older versions of the kernel. The two are mainly used when applying

Reference:1. Linux Shared library: Ld_library_path and ld.so.confThe Linux environment variable name, which is used primarily to specify a path other than the default path when locating a shared library (dynamic link library). (The path is found

The original text is referenced in: http://blog.csdn.net/zeng622peng/article/details/6837382How do I get the suffix named gzip file under Linux? 1. Files with a. A extension: #tar XV file.a2. Files with a. z Extension: #uncompress file. Z3. Files

  I downloaded a file-----multiple execute command scripts. rar, is RAR compression format, want to open under Linux, so installed rarlinux-4.0.1.tar.gz, this thought very smooth, however, still can not execute RAR command.

WhatWhat is an IP alias?In the words of Windows, you configure multiple IPs for a network card.WhenWhat is the occasion to add IP aliases?Web needs, multi-IP access testing, specific software for multiple IP needs ... and so on.HowHere are a few

The inode is the structure of the saved file attribute in Linux and the actual contents of the file are stored in the block. The address information for the block of the file is stored in the inode. You can use the command Ll-di file_path to view

* This article transferred from Ggjucheng's blogIntroducedIftop is a real-time traffic monitoring tool, monitoring TCP/IP connectivity, the disadvantage is no reporting function. Must be root to run.InstanceThe default is to monitor the first

Recently installed the linux,ubuntu15.04 system on a notebook. I did a U disk Boot disk installation, installed after entering Blos set Ubuntu as the first startup item.After that, restarting the computer shows "unable to find the operating system"

In the study of "dialect and Chinese culture", we need to submit a recording, the phone's recording default is WAV format, need to convert to MP3 formatLinux can be converted with lameLame sample.wav sample.mp3lame-h sample.wav Sample.mp3 # highest

Tools to use cwrsync:http://down.51cto.com/data/2103716BAT script used on Windows:@echo offset fdate=%date:~0,4%_%date:~5,2%_%date:~8,2%_%time:~0,2%_%time:~3,2% echo%fdate%ldifde-f%fdate%.ldfmove %fdate%.ldf

Make your PHP 7 faster (gcc pgo) We have been committed to improving the performance of PHP 7. Last month we noticed that the gcc pgo can improve the performance by nearly 10% on Wordpress, which made us very excited. However, PGO, as the name

Install and use data recovery software extundelete in CentOS 6.5 Install and use data recovery software extundelete in CentOS 6.5 I. Installation (1) first extundelete software depends on e2fsprogs e2fsprogs-libs e2fsprogs-devel Software Package (2)

Differences between Linux commands rmdir and rm Rmdir is a command that corresponds to mkdir. Mkdir is used to create a directory, while rmdir is the command to delete a directory. The rm command can delete files or directories at the same

RHCE Study Notes 2 -- command line operation File1. Create and delete a file (touch, rm) touch xxxx create a new empty file touch-t 201412250101 xxxx create a file and specify the time attribute (year, month, day, And hour. seconds) [root @ cai home]

Common SecureCRT commands and common securecrt commands  Common commands:1. ls only lists file names (equivalent to dir, dir can also be used)-A: lists all objects, including hidden objects.-L: a list that contains most attributes of a file.-R:

Add users to sudoers under CentOS After installing the system, CentOS cannot use the sudo command by default. In this case, we need to add the login user to the/etc/sudoers file. Assume that the user name is tom. Switch to Super User: $ su-

Concise Vim leveling strategy (transfer) and vim leveling strategy Original article: http://coolshell.cn/articles/5426.html Vim's learning curve is quite large (see the learning curve of various text editors). Therefore, if you see a lot of VIM

Xiao Li-cloud monitoring methods for SMEs and entrepreneurial teams Entrepreneurial teams often have fewer people, emphasize efficiency, and speed. Therefore, public clouds are generally used to deploy services. cloud-based monitoring is a

Iredmail installation script analysis (iii) --- conf/global DISTRO value source and operating system judgmentWhen introducing the conf/global file, the author has determined the type of the operating system and assigned a value to DISTRO. Part of

Ceph performance tuning-Journal and tcmalloc Recently, a simple performance test has been conducted on Ceph, and it is found that the performance of Journal and the version of tcmalloc have a great impact on the performance.Test Results # rados -p