ExamplesThe same group microsoft of two accounts and the justmine001 justmine002 need for co-ownership /microsoft/eshop of the directory development Rights in order to work together, but others are not allowed to access and access to the
Linux Basics: Https://www.cnblogs.com/dunitian/p/4822808.html#linuxBefore see friends still apt-get update upgrade, very puzzled, later found that he just know this update command but do not know its meaning, so every time you install a package will
structure diagram of the inodeHttps://www.cnblogs.com/xiexj/p/7214502.htmlI. Contents of the InodeThe inode contains meta information for the file, specifically the following:
The number of bytes in the file
User ID of the owner of the
Linux OpenSSH OpenSSLNote Date 20180524DirectoryOpenSSHConfigure SSH key-based authenticationServer-side configuration filesBest Practices for SSH servicesOpensslThree componentsPki:public Key InfrastructureEstablish a private CACertificate
Resolve issues such as AWS mounting, resolving hangs, and disappearingThere is a difference between a disk on Linux and a window, which must be mounted on a directory, otherwise uselessThe actions on the new hard disk, SSD, and Mount to Linux are as
Linux Operating System Computing time:Main function: Time localtime gmtime asctime ctime mktimeDifftime strftime Gmstrftime1.time () functionPrototype: time_t time (time_t * timer)Function: Returns a time_t type of data representing the number of
What is Linux?
Linux is a free-to-use and free-to-propagate Unix-like operating system, is a POSIX-based (Portable OS interface Portable Operating system Interface of Unix) and Unix (Unxi is a time-sharing operating system, The time-sharing
Hard links and soft linksThere are two types of Linux links:? Called Hard links,? The other is called Symbolic links (symbolic link).By default, the LN command creates a hard link, Ln-s creates a soft connection
"Hard Connect"A hard connection
Order format: command [OPTIONS ...] [ARGUMENTS ...]COMMAND:Initiating a command: Requests that the kernel run a binary program as a process;Programs--ProcessStatic--Dynamic (with life cycle)Examples take centos6.5 as an example.1. Ifconfig: View all
Postfix is an e-mail server that was developed by the IBM Watson Research Center (T.J. Wietse Venema, a Dutch researcher at Watson Research Center, was created to improve the SendMail mail server. First appeared in the late 1990, is an open source
Full-network backup data synchronization schemeBacking up site personnel information does not resolve backups of external (people) upload dataThe shortest period of time is one minute, and it can sometimes cause data loss within one minute by using
Tail-f Test.logYou will see that the screen is constantly being printed out. This time interrupts the first process ctrl-c,How Linux displays a few lines of a file (in the middle of a few lines)Starting at line No. 3000, displays 1000 rows. The 3000~
Watch is a very useful command, basically all Linux distributions with this gadget, like the name, watch can help you monitor the results of a command, save you to manually run over and over again. Under Linux, watch is the periodic execution of the
Through the first lesson, you should already know that Linux is a multi-user login operating system, such as "Li Lei" and "Han Meimei" can both log on the same host, they share some of the resources of the host, but they also have their own user
Grub INTRODUCTIONstored in the first 446 bytes of the MBR, grub is divided into stage1/stage1.5/stage2.
Stage1: Mainly responsible for the handover between the BIOS and grub, loading the boot files stored in each partition
stage1.5:
Learning Embedded Linux driver development, the most important skill is the ability to write Linux kernel driver, deep understanding of the Linux kernel. The basis for this step is that you have to understand the Linux kernel source code, understand
9.6 "Linux learning is not difficult" user management (6): Delete Linux user account Use the Userdel command to delete a user account from a Linux system, and even delete the user's home directory.Command syntax:Userdel [Options] [user name]The
1. Open the VMware Workstation Pro and open windows 7.2. Enter the password and press ENTER.3. Turn on the virtual machine rhk-2.4. Enter the user name as root and press ENTER.5. Enter the password and press ENTER.6. Select "Do not show this message
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