Linux

This digest from https://www.cnblogs.com/zzyoucan/p/7764590.htmlWhen we work in a terminal or console, we may not want to occupy the screen because of running a job, because there may be more important things to do, such as reading e-mails. For

Cat/etc/redhat-release #能看到是什么linux和版本1. # uname-a (Linux view version current operating system kernel information)Linux localhost.localdomain 2.4.20-8 #1 Thu Mar 17:54:28 EST 2003 i686 Athlon i386 Gnu/linux2. # cat/proc/version (Linux view current

Steps Using ssh-keygen the Generate key pair The prompt asks for information such as saved location, password, and so on. Use all default information to Use to ssh-copy-id [email protected] copy the public key to the account of a server

3.7 su Command3.8sudo command3.9 Restricting root Telnet3.7SU commandThe SU command can switch identities. Not very safe.Plus the bar can be completely switched.Root can switch to a normal user.Normal users can switch to normal users.SU command

Mount the new hard disk after the input fdisk-l command to see the current disk information can be seen in addition to the current first hard disk and a second hard disk SDB, and then partition into the Fdisk command with FDISK/DEV/SDB, enter H can

Shared Memory IPC principleThe inter-process communication mechanism for shared memory is primarily used to implement large amounts of data transfer between processes, as shown by the use of shared memory between processes for large amounts of data

File Search command: locate Whereis which findString Search Command grepLocateUsage: Locate file name -Because the locate command searches in the background database by file name, it does not need to search the entire system file, all searches are

1. Hierarchy of Linux file systems1) understand the tree structure of the Linux file system:In a Linux or Unix operating system, all files and directories are organized into an inverted tree structure that starts with the root node.2) Master the

Disk space-related commands1.mount: Mount file system (including hard disks, discs, floppy disks, etc.)MOUNT-T Device Type Storage directoryEg: under directory/mnt, mount the iso9660 file system: Mount-t Iso9660/dev/hdb/cdrom2.umount: Unmount The

Download the Python3.6.4 installation package using the wget commandwget https://www.python.org/ftp/python/3.6.4/Python-3.6.4.tgzUnzip the Python3.6.4 using the tar commandTar zxvf python-3.6. 4. tgzEnter the Python-3.6.4 directoryCD python-3.6.

1. View how files are encoded: File commandfile Test_file.txttest_file.txt:ISO-8859longfile train_model.py Train_model.py:Python script, UTF-8file+However, the file command is not reliable, and a gb2312 encoded document is judged to be ISO-88592.

will beWindowsin theF:\sadocfolder Right click Set as shared directory, share user asAdministrator# yum-y Install cifs-utils # installing the Mount.cifs package# mkdir/windows # Create mount directory windows# mount.cifs//10.0.0.1/sadoc/windows/-o

In Linux, how does one view the developed port ?, View development ports in linux Introduction: on Linux servers, it is often necessary to check whether certain ports of the system are enabled normally, or to know which processes occupy specific

Practical tutorial on online project configuration of Linux system cluster architecture (I): linux practice Project Overview The entire project includes the following application projects: 1. User APP 2. Merchant APP 3. Business Platform management

Share common Linux Bash and Vim commands, bashvim I am a Linux cainiao. I only use some basic commands and record them here.Bash shortcut Command Description Ctrl + Move to the beginning of the command line Ctrl +

The date and week condition test in crontab in linux, linuxcrontab Crontab expression. The relationship between the first four items is "and", which must be met before execution; However, the week and the date of the previous month are in or

Differences between ps aux, ps-aux, and ps-ef in Linux:-aux-ef The ps command in Linux is short for Process Status. The ps command is used to list the processes currently running in the system. The ps command lists the snapshots of the current

Common commands and application scenarios in Linux and Common commands in linux1. Switch users Command: su-paytest. Press enter to enter the password.2. view the File System Command: df-a (used to view the usage of the file system) Command:

Set and linuxset in linux 1. set-e "Exit immediately if a simple command exits with a non-zero status ." The code that appears after "set-e". Once the return value is non-zero, the entire script exits immediately. 2. set-o pipefail "If set, the

Brk () and mmap () memory ing, brkmmap memory ing Reference blog: http://www.cnblogs.com/huxiao-tee/p/4660352.html Virtual Address Space Distribution of linux processes on the x86 Platform (versions earlier than 2.6.7) The mmap and stack