linux learning curve

Linux System Management1. Storage ManagementTraditional disk PartitioningRAID technology, implementation of soft raidLvmFile System ManagementExt,xfs,btrfs (Learn)2. Package ManagementRPM, yum, DNF3.sed, Gawk4. Process Management5. Network ManagementNetworking Basics (Cisco CCNA+CCNP)Network attribute ManagementNetwork parameter Monitoring6.Linux Kernel ManagementKernel Compilation and InstallationClipping

/mnt Default mount for CD-ROM and floppy drive directories /boot Store boot-related files /etc Storing configuration-related files /var Storage of frequently changing documents /usr Default installation path for software 3. Use of the Vi editor Vi Hello.jave I Enter insert mode Input code ESC launches insert mode ： Wq Save and exit Q! Do not save exit Java

* bd_super; int bd_openers; /a reference count that records the number of times the block device has been opened, or how many processes have opened the device struct Mutex Bd_mutex; / * Open/close Mutex * / struct List_head bd_inodes; void * Bd_holder; int bd_holders; struct Block_device * bd_contains; /If the block_device describes a partition, the variable points to the Block_device that describes the primary block device, which, conversely, points to itself/ unsigned bd_bl

machine, right-click the network in the lower right corner, open the Network Center, you will see this:Settings, Properties-"ip4-" settingHere the IP address is preferably the virtual machine inside the gateway set;After setting up, let's try it and see if we can ping it through:Can ping the pass, then we set his hostname:Here, basically the virtual machine system can be used, we can use Remote Tools to connect, we use putty this tool: Putty Chinese version of the downloadThen is login, login s

, cannot be associated to a separate partition, the program that is used by OS startup/SRV: Data used by services on the system/usr:universal Shared read-only Data:Bin: An application that ensures that the system has full functionality.SbinLIB64:Header file for Include:c program (head files)Share: Structured and independent programLocal: Installation location for third-party applications:Bin,sbin,lib,lib64,etc,share/proc: A virtual file system for outputting kernel-related process information/sy

first!Now, give the echo $PATH to see what directories are defined? Echo has the meaning of "show, Print," and the $ in front of path indicates that the variable is followed, so the current path is displayed!2. file and directory management The management of files and directories is nothing more than "Display Properties", "Copy", "Delete Files" and "Move files or directories" and so on, because the management of files and directories in Linux is very

layer of services provided, layer by package, leaving only one channel and this channel can not affect the next layer of the original code. So as to provide users with an efficient and secure operating system. In fact, layers of packaging appear in all aspects of the computer, such as CPU, storage devices and other hardware production.Two. Linux Kernel Analysis Course learning experience

Many people always ask this question, so here is a summary document for your reference. Here, we must first describe that the following steps are for Linux systems and not for wince. Maybe you will notice that there are far more people doing Linux research in embedded systems than those doing wince. Many manufacturers also provide information based on Linux. I ha

As a Linux enthusiast, in the world of Linux is also a half-old driver, from the desktop to the server, from Ubuntu to CentOS, from computer to router, all kinds of Linux fancy play have a little experience. The author is not a professional Linux player, I just will Linux as

Before learning Linux, we should look at their own conditions, and more with some of the Linux predecessors, to find the right way to learn. May be in everyone's serious feel Linux learning is more boring, but in fact, Linux

4 stages of getting Started with Linux systems for IT Technology Learning Guide (pure Dry ribbon diagram)60% of the world's people are using Linux. Almost no one is "in favor" of the Linux system, and many of the services we enjoy (including Web services, chat services, and so on) are almost always powered by

As a Linux enthusiast, in the world of Linux is also a half-old driver, from the desktop to the server, from Ubuntu to CentOS, from computer to router, all kinds of Linux fancy play have a little experience. The author is not a professional Linux player, I just will Linux as

Linux originated in the 1970s, it is an excellent operating system. The first time that Linux was exposed to this system was during college, so it was discovered in addition to the other interesting system outside of Windows. Start with a curious mentality to understand, with in-depth study, the author is its unique charm attracted. Even though its visual window operating mode is not as perfect as the Windo

began my Linux learning path. Because learning Linux in the school curriculum is to lay the groundwork for future learning, it is not enough for me to know. At that time, after all the junior, and then six months to find a job, I also think in the future to engage in what i

Linux Study Notes (7) common Linux commands: compression and decompression commands, learning notes compression and decompression(1) gzip The gzip command is used to compress files. The original English meaning is GNU zip. The path is/bin/gzip. The syntax format is as follows: Gzip [file] The file format is .gz. For example, copy the services file under the/etc d

who initiates an interactive shell session on the system, and the file executes the application-specific boot files located in the/ETC/PROFILE.D directory.Mode three non-interactive shellThis is the shell used by the system to execute shell scripts.Variable groupValues are enclosed in parentheses, separated by a space between values and values.Using command aliasesCommand aliases allow you to create an alias for common commands (along with their arguments)Alias-pView an existing list of aliases

Manage Service CommandsIn RHEL7, the operation of the service command is not the same as CENTOS7 and Rhel6, RHEL6 uses the service, Chkconfig, and so on, while the RHEL7 command is systemctl.650) this.width=650; "src=" Https://s3.51cto.com/wyfs02/M00/96/80/wKiom1kikIzDR0atAACo8AazrOw449.jpg "title=" 1495437210.jpg "alt=" wkiom1kikizdr0ataaco8aazrow449.jpg "/>650) this.width=650; src=" https://s4.51cto.com/ Wyfs02/m00/96/80/wkiom1kiksjby1klaac6cbjwxcw205.jpg "title=" 1495437542.jpg "alt=" Wkiom1k

Manage Service CommandsIn RHEL7, the operation of the service command is not the same as CENTOS7 and Rhel6, RHEL6 uses the service, Chkconfig, and so on, while the RHEL7 command is systemctl.650) this.width=650; "src=" Https://s3.51cto.com/wyfs02/M00/96/80/wKiom1kikIzDR0atAACo8AazrOw449.jpg "title=" 1495437210.jpg "alt=" wkiom1kikizdr0ataaco8aazrow449.jpg "/>650) this.width=650; src=" https://s4.51cto.com/ Wyfs02/m00/96/80/wkiom1kiksjby1klaac6cbjwxcw205.jpg "title=" 1495437542.jpg "alt=" Wkiom1k

Manage Service CommandsIn RHEL7, the operation of the service command is not the same as CENTOS7 and Rhel6, RHEL6 uses the service, Chkconfig, and so on, while the RHEL7 command is systemctl.650) this.width=650; "src=" Https://s3.51cto.com/wyfs02/M00/96/80/wKiom1kikIzDR0atAACo8AazrOw449.jpg "title=" 1495437210.jpg "alt=" wkiom1kikizdr0ataaco8aazrow449.jpg "/>650) this.width=650; src=" https://s4.51cto.com/ Wyfs02/m00/96/80/wkiom1kiksjby1klaac6cbjwxcw205.jpg "title=" 1495437542.jpg "alt=" Wkiom1k

permissions of the soft link file, different from the original file4, modify any file, the other changes5, delete the original file, soft links can not be usedLess restrictive, and flexible[[email protected] ~]# lsAnacondalks.cfg Cangls Install.log Install.log.syslog[Ro[email protected] ~]# ln-s/root/anaconda-ks.cfg/tmp/cangls.soft[Email protected] ~]# Ln/root/cangls/tmp/cangls.hard[email protected] ~]# LLTotal Dosage 40-rw-r--r--. 2 root root 1207 January 22:00 Cangls...[Email protected] ~]# l