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After Ubuntu is installed, the wireless network card is unavailable. you can use the following methods to solve this problem. For more information, see Ubuntu. 1. run the following command on the terminal to reinstall all drivers and firmware

The image is better than the text. it outlines the work of Linux: Understanding LinuxShell: shell: a command line interpreter that helps users deal with the operating system by executing commands or scripts. Process: process. The task executed by

The following may be the ten Linux commands you have never used. But it is quite useful. To help you 1) pgrep There is a p in front of the pgrep name. we can guess that it is related to the process, and it is also a grep command related to the

There are two obvious advantages to reduce the file size. one is to reduce the storage space, and the other is to reduce the transmission time when the file is transmitted over the network. Gzip is a frequently used command in Linux to compress and

This article mainly introduces how to configure the firewall iptables instance in linux. For more information, see Iptables a detailed instanceCopy codeThe code is as follows:/Etc/init. d/iptables start iptablesInitialize iptables and delete

Today, after configuring the Linux Nic according to the CentOS network configuration article earlier in the Mitchell blog, we found that the internet cannot be pinged, but the intranet ping is normal. I have been wondering that I haven't got the

The technical skills here were initially from Google's TestingontheToilet (TOTT ). Here is a revised and expanded version. Script security all my bash scripts have the following opening remarks :#! /Bin/bashset-onounsetset-oerrexit this will

This article mainly introduces how to change the folder opening mode and add the path, forward, and backward buttons for centos. if you need them, refer to the following tag: CentOS In CentOS, double-click a folder. by default, a folder is opened

This article describes how to use ftp commands in linux. For more information, see FTP commands are one of the most frequently used commands by Internet users. a large number of internal FTP commands are used in both DOS and LINUX operating systems.

This article mainly introduces how to use the Microsoft Mouse 4th and 5 keys in linux. For more information, see Although most users of linux do not like Microsoft very well, it cannot be denied that Microsoft has made many good things, such as

In Linux, the top command is used to display the real-time status of processes running in the system. it displays some useful information, such as CPU utilization and memory consumption, and the status of each process. But, do you know? There is

A good terminal simulator is a good reason for choosing Linux instead of Windows or Mac. any senior Linux user will agree to this. By using shell, you can complete tasks that are impossible or too repetitive in a graphic environment. But the

In linux, how does one delete folders? For more information, see this article. This article introduces the Linux folder deletion command. Deleting a directory in linux is very simple. many people are still used to using rmdir. However, once the

This section describes the Linux graphical environment, including the concepts and features of X-Window, KDE, and GNOME. the following uses the red-flag Linux desktop version 4.0 as an example to describe the system configuration and application of

For Linux beginners, installing a very small software may be a headache, because installing software in Linux is not as simple as in Windows. In Linux, most software provides source code rather than ready-made executable files, which requires users

I. fdisk introduction fdisk-PartitiontablemanipulatorforLinux, which means the disk partition table operation tool in Chinese. I did not translate very well and did not read Chinese documents; in fact, the partition tool fdsik can divide disks into

Programmers who are new to linux often receive garbled greetings. It can be described as "starting from chaos ". Because of the garbled code, and finally gave up linux is not a minority. Well, let's get down to the truth. let's first look at how

Related reading: There is also a programmer's essential qualities Related reading: Here is a programmer essential quality http://www.2cto.com/ OS /200506/5574.html With the increasing popularity of Linux, users are becoming more and more popular. a

& Nbsp; The ERR_PTR, IS_ERR, and PTR_ERR inline functions are often seen in kernel code and drivers. Many kernel functions need to return a pointer, but the function call may fail. in this case, we usually return a NULL pointer, just as malloc or

Start the visual editor vifilename from shell to instruct shell to start the vi editor and pass the filename parameter to it. If the current file exists, the vi editor interprets it as the file to be opened. if the file does not exist, the vi