practical guide to linux commands

in 10Linux system11Linux PS Command Combat12 those features of the DF command that you do not know under Linux1320 Linux Command interview quiz144 Most popular open source code editors for Linux platforms15Ubuntu Text Editor vi workaround for error using arrow keys16Linux view some frequently used command summaries of system logs17Linux How to improve the copy efficiency of large files to save timeWhat

directory 2. add a group Groupadd webadmin Or: groupadd-g 8888 webadmin //-g to specify GID = 8888 Save group information in the/etc/group file] 3. add a user to a group [Practical significance of adding users to a group: if a file needs to grant special permissions to several users, add these users to the group] Method 1, Usermod-G group name username Method 2: [simple commands for user group management]

Today summarizes some of the top command's interactive commands, more practical! H or? Display the help screen and give some brief summary of the commands K Terminates a process. The user will be prompted for the process PID to be terminated and what signal needs to be sent to the process. The normal termination process can u

This article describes the common shortcut keys for Linux command-line editing, which I hope will help you.Linux Command line edit shortcut keys:History displays a list of command histories↑ (ctrl+p) Show previous command↓ (CTRL + N) Displays the next command!num the NUM command that executes the command history list!! Executes the previous command!? String? Executes the most recent command with string stringsCtrl+r then enter several characters, star

Four advantages:1. Use the UP and DOWN ARROW keys to adjust the previous executed Linux commands;2. Commands or parameters only need to input the first few can be used to complete the TAB key;3 A powerful batch-processing script4. With practical environment variable functionSecond, the system commonly used work order1.

Red Hat Linux Common Operations Command (derived from the network summary in a piece1. How to use the command (three ways)Shutdown--helpShutdown--?Man shutdown (man is Manual Handbook, guide)2. Services ServiceHow do you know the name of the service? Use this command to Chkconfig:Chkconfig--list will list all the service itemsStart a service, such as a service that starts MySQLService MySQL start not all th

specified.E. Delete commandNDW or NDW: Delete the n-1 characters at the beginning and after the cursorDo: Delete to the beginning of the lined$: Delete to end of lineNDD: Deletes the current line and its subsequent n-1 rowsX or x: Deletes a character, x deletes the cursor, and x deletes the cursor before theCtrl+u: Delete text entered under input modeF. Search and Replace commands/pattern: Searches for pattern at the end of the file from the beginnin

deletes the cursor before theCtrl+u: Delete text entered under input modeF. Search and Replace commands/pattern: Searches for pattern at the end of the file from the beginning of the cursor? pattern: Searches for pattern from the beginning of the cursor to the top of the fileN: Repeat the last search command in the same directionN: Repeats the last search command in the opposite direction: s/p1/p2/g: Replaces all P1 in the current row with P2: n1,n2s

14 useful examples of Linux Sort commands (1) Sort is a Linux program used to Sort the content of one or more text files. The Sort command uses space as the field separator and splits a line into multiple keywords to Sort the files. Note that unless you redirect the output to a file, the Sort command does not actually Sort the file content (that is, the file cont

In Windows, there are several very practical commands that can be used to locate some network problems. In Linux, the command name is a bit different. 1. NSlookup, which is replaced by Dig in Linux, dig provides more detailed information, and, in turn, has a dig_for_win, and can be used in Windows dig; 2, tracert, can

single line is used to describe the given command.19.man–manualman A manual page is displayed for the given command.20.exitexitUsed to end the current terminal session.21.pingping Ping a remote host (server) by sending a packet, commonly used to detect network connections and server status.22.who–who is logged inwhoCan list the currently logged in user name.23.su–switch Usersu Used to switch between different users. Super users can switch to other users even if they are not using a password.24.

Bash provides a number of shortcut keys, the following are the most commonly usedCTRL + A cursor moves to the beginningCtrl+e cursor moves to end of lineCtrl+l Clear ScreenCTRL + C terminating processCTRL + Z Hang up processCtrl+u Delete the character from the beginning of the cursorCtrl+k Delete the character of the cursor to the end of the lineCtrl+f Cursor Right one characterCTRL+B cursor moves left one characterCtrl+w Delete a character before the cursorAlt+d Delete a character after the cur

than 0, ibid.Number of blocks received by BI block devices per secondNumber of blocks sent by Bo block devices per second in CPU interrupts per second, including time interruptsCS -per-second number of context switchesUS users using CPU timesy system uses CPU timeID Idle CPU time, in general, ID + US + sy = 100, can be understood as: ID is idle CPU usage, US is User CPU usage, SY is System CPU utilizationwa waits for IO to consume CPU timeThis article is from the "

First, the Directory Processing command1.mkdirThe path to the command:/bin/mkdirFunction Description: Create a new directory-P Recursive creationExample: MKDIR/TMP/FILE01The catalogue must be planned, and the command should have meaning.To make it easier to find2.cdThe path to the command:/bin/Function Description: Switch directory. Represents the current directory.. Represents the top-level directory of the current directoryCd.. Go back to the top level directory (command format strict specific

some of the practical Linux Command Summary1. Enable the Vim editor to automatically add line numbers when editingecho "Set Nu" >>/etc/profile2. Manually add line numbers in the Vim editorWhen Vim is turned on, enter set nu in command line mode 3, when entering English words, the distance between each letter is very large 4, when reading text, print lines that begin with spaces and # Cp/etc/profile/ex

with Ubuntu desktop and CENTOS6/7 environments Linux Knowledge related Linux thought map finishing Advanced Learning Resources finishing for Linux beginners Getting Started with Linux basics Understanding of the "translated" Linux conceptual archit

Linux High-end operations learning requires a large number of commands and related tools, read through the Bash man page, master VIM Use, understand SSH is the Linux high-end operations engineers must work , mastering the Linux High-end operational Utility commands is a prer

ID WA st2 0 0 57484 356864 861332 0 0 0 1 7 3 1 0 99 0 00 0 0 57468 356864 861360 0 0 0 0 336 145 6 1 94 0 00 0 0 57468 356864 861360 0 0 0 0 43 51 0 0 100 0 00 0 0 57468 356864 861360 0 0 0 16 51 62 0 0 100 0 0[16-wireshark]Wireshark's predecessor is called Ethereal, we can think Wireshark is the tcpdump command of the master brother, because Wireshark will be more professional, but also have more advanced protocol analysis and statistical capabilities.Wireshark also has GUI interfaces and she

Guide Below is a list of the 10 basic network and Monitoring commands that each Linux user should know about.Network and Monitoring commands are similar to these:hostname, Ping,ifconfig, Iwconfig, netstat, nslookup, traceroute, finger, telnet, Ethtool is used to view the Linu