practical guide to linux commands

Summary of practical skills for passwd commands in CentOSThis article mainly introduces the practical tips of passwd commands in Linux. It is the basic knowledge in Linux beginners. If you need it, let's take a look at the basic u

This article mainly introduces the practical tips of passwd commands in Linux. it is the basic knowledge in Linux beginners. if you need it, let's take a look at the basic usage of passwd commands: the Linuxpasswd command is used to change the user's password syntax passwd [

This article mainly introduces the Linux system passwd command Practical Tips Summary, is the basic knowledge of Linux primer learning, the need for friends can refer to the followingLet 's review the basic usage of the passwd command: linux passwd command to change the password of the user syntax passwd [-K] [-l]

Article Title: Practical SSH skills and instructions for using common commands. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Commands

Upload and download files using SECURECRT (with SZ and RZ commands)With SECURTCRT, using the Linux command sz can easily download files on the server to local, using the RZ command to upload local files to the server.Among them, for SZ and RZ understanding and memory I used the following methods (often easy to confuse):The s in SZ mean Send (send), tell the client, I (server) to send the file send to Cilent

execute in the current shell, execute $ source xpjiang.sh, and you can find that the directory is switched to Mydir, while the output of the echo $Direct is/home/xpjiang/mydir.Loop control　Write script rename.sh, change mode to executable:CD echo I am in ' pwd ' # ' PWD ' will take out the output of the command for the file in the ' ls ' do mv $file $file. txt done　　Added to ~/bin to make it a system command. Perform:$ mkdir Mydir $ cd mydir; Touch a b C;　　Cd.. $ rename.sh mydir I am in/home/x

In the Linux File Command Master Guide, we discussed the basic information needed to leverage the most basic and most common Linux file commands. In this article, I will discuss the Linux system commands in the same way.As we lear

In the Linux File Command Master Guide (above), we discussed the basic information needed to leverage the most basic and most common Linux file commands. In this article, I will discuss the Linux system commands in the same way.As

With Xshell, using the Linux command sz can easily download files on the server to local, using the RZ command to upload local files to the server.Among them, for SZ and RZ understanding and memory I used the following methods (often easy to confuse):The s in SZ mean Send (send), tell the client, I (server) to send the file send to Cilent, is equivalent to the client in the download.RZ in R means received (receive), tell the client, I (server) to rece

Linux depth Introduction First, from the introduction of Linux system installation, the Linux system management and server configuration of the two parts of knowledge. System management aspects include Linux system introduction and installation, Linux character interface, di

Learning Guide Articles The method is to do more hands, brain, learn to often compare with Windows. It is recommended that you install Redhat Linux First, and then practice how to configure it, how to use Linux commands, how to operate under the X-windows, how to install the application software under

In the previous sections, we have divided Linux commands into several parts based on their functions in the system. However, there are still some commands that are difficult to classify, but learning them is the same In the previous sections, we have divided Linux commands i

Linux are 11025Hz, 16000Hz, 22050Hz, 32000Hz and 44100Hz. The following code demonstrates how to set the sample frequency for a sound card:int rate = 22050;int result = IOCTL (handle, Sndctl_dsp_speed, rate); if (result = =-1) {perror ("IOCTL sample format" ); return-1;} Check the correctness of the set value4.2 Mixer ProgrammingThe mixer on the sound card consists of multiple mixing channels, which can be programmed by the device file/dev/mixer prov

[dedicated to learning in depthLinuxDevelopment of Netizens] LinuxA concise Guide to application development to kernel development. Preface, Linux/unix Community of the section is not lively, novice too many, master too busy, I put myself this several years of the process of Linux learning to speak, hope to give everyone a little help,

no parameters, and all the available mix channels on the sound card are listed:[Email protected] sound]$/mixerusage:./mixer You can then easily set the gain size for each mix channel, such as the following command to set the gain of the left and right channels of the CD input to 80% and 90%, respectively:[[email protected] sound]$./mixer CD 90CD gain set to 80%/90%V. SummaryWith the gradual deepening of multimedia application under Linux platform, th

Guide to cainiao installation-concepts that can be remembered after you have heard of the linux Kernel I plan to share it with our department. We found that some bottom-layer knowledge is stuck in one sentence. For example, we heard that JVM uses-XX:-UseBiasedLocking to cancel biased locking to improve performance, because it is only applicable to non-multi-thread high concurrency applications. Use the Digi

, Memory Management), inter-process communication and network programming pipelines, message queues, shared memory, signal lights, sockets, device drivers) user Interface Programming ncurses, Xlib, Motif, GTK, Qt, Java, OpenCL), Shell programming and GDB debugging tools are all briefly introduced. It is a good book to understand the Linux programming environment, however, this book is indeed a guide, and ev

Article Title: Linux beginner's Learning Guide. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Study Guide 　　 　　 1. How to quickly mast

Linux Command proficiency GuideAuthor: Sheryl calish Introduction to system commands for Linux beginners In the "Linux file command proficiency Guide", we discussed the basic information required to take advantage of the most basic and commonly used

Linux yum commands and yum commands Yum (all called Yellow dog Updater, Modified) is a Shell front-end Package Manager in Fedora, RedHat, and SUSE. Based on RPM package management, You can automatically download and install the RPM package from the specified server, automatically handle dependencies, and install all dependent software packages at a time, you do n