Linux

DF comes from the coreutils software package and comes with it during system installation. We can use this command to view the disk usage and the location where the file system is mounted. Example: [Root @ localhost beinan] # DF-lH Filesystem

View the size of the Linux File directory and the number of files contained in the folder Total statistics sizeDu-SH xmldb/Du-Sm * | sort-N // count the current directory size and sort the directory size.Du-SK * | sort-nDu-SK * | grep guojf //

Configuring the Arduino development environment in Linux is very simple, but some problems still occur due to permissions.Linux automatically identifies Arduino devices and does not need to install drivers separately. Lsusb allows you to view the

First check whether the video card is installed Run: glxinfo | grep Rendering If "direct rendering: yes" is displayed 1. Download the driver Http://www.nvidia.com/page/home.html I downloaded the NVIDIA-Linux-x86-100.14.19-pkg1.run file.

1)for. ZipIn Linux, zip and unzip are provided.Program, Zip is the compression program, unzip is the decompression program. They have many Parameter options, which can be viewed by the command zip-help and unzip-help. Here we will only give a brief

1. After downloading the font, copy the font to/usr/share/fonts/(Note whether the font is commercial)You can create directories for ease of management. After copying the file, modify the font permission so that users other than root can use it. 2.

The TCP receiver has three types of Queues: 1 Backlog Queue (sk-> backlog) 2 Prequeue Queue (tp-> ucopy. prequeue) 3 Receive Queue (sk-> receive_queue)   Then let's look at the differences between the three queues. First, the sk_backlog queue is

Ln(Link) Function Description:Connect to a file or directory. Syntax: ln[-BDfInsv] [-S ] [-V ] [-- help] [-- version] [source file or directory] [target file or directory] Or ln [-bdfinsv] [-S ] [-V ] [-- help] [-- version] [source file or directory.

After installing fedora, you usually need to reconfigure the yum source. The default source is too slow. Generally, 163 and sohu are faster. Yum has many sources, so sohu's   Cd/etc/   Back up the source file (optional) Mv yum. repos. d yum. repos.

1. Install the linux ClientEnter yum install rsync in the command line. Ii. windows Server Installation 1. Download: http://sourceforge.net/projects/sereds/files/cwRsync/4.1.0/cwRsyncServer_4.1.0_Installer.zipAfter unzipping and installation, the

Remember: First back up the data in the hard disk. I tried to get rid of the entire hard drive. I just wanted to try it again from the beginning. Generally, this is not necessary. Use the partitioning tool of the system to install the disc (such as

First, we will introduce how the memory is used in linux.When an application needs to read and write disk data, the system reads the relevant data from the disk to the memory. If the physical memory is insufficient, some data in the memory is

Linux mint ranks first in distrowatch. I don't know why ustc is the only source in China. And the speed is not fast. However, linux mint is based on all ubuntu sources with ubuntu configured. However, the version is precise (12.04. The day before

In the 2.6 era, the steps for writing a linux system call are as follows: Compile the actual operation function Add macro definitions in linux/include/asm-i386/unistd. h#define __NR_myfunctioin 399 In linux/arch/i386/kernel/entry. S, add.long

  Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->Etc/xinetd. d directory In Linux, there is an ultimate service program inetd. Most network services are started by him, such as chargen, echo, finger,

  Original article address: Http://neil-cs.blogspot.com/2011/06/screen.html  The very nice screen command screen does not work for virtual hosts that do not support SSH, but it is very useful for vps. I don't know if my friends suddenly interrupted

This article from the CSDN blog, reproduced please indicate the source: http://blog.csdn.net/yunsongice/archive/2010/05/18/5605264.aspx The read/write spin lock is also introduced to protect the shared data structure under the SMP system. It is

  Step 1: Create a Telnet connection Xstart Session to connect to the Linux Server After Xmanager3 is installed, open Xbrowser to create an Xstart Session. File-> New Session Wizzard create XstartSession Next: Enter the Host IP address, select the

Install ubuntu on a USB flash drive to boot the system (bios must be able to boot the USB flash drive. in addition, you can unplug the USB flash drive on any computer at any time to use the eye-catching ubuntu. Of course, your USB flash drive

Ubuntu is very beautiful. I like it very much, but after so many years, I have already installed a micro-engine operating system, and I think it is better to write it to Linux, it takes a while, but his outsourcers are pretty. So I recommend it to