command in linux

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Unzip the tar command in linux

Tar command tar [-cxtzjvfpPN] file and directory .... parameter:-c: create a compressed file parameter command (create);-x: unlock a compressed file parameter command! -T: view the files in the tarfile! Note that c /... Tar command Tar [-cxtzjvfpPN]

Linux basic configuration and management 10 ---- use the dd command in Linux to create a USB flash drive for ubuntu

Step 1: obtain an iso image of ubuntu. assume that my current ios image is in homechenguolin *** iso step 2. Insert the USB flash disk and view the code of the USB flash disk in the current system step 3, unmount the USB flash drive, step 4 of

Use the dirname command in Linux

Http://www.linuxidc.com/Linux/2008-09/15517.htm In Linux, the PWD command and getcwd () function are commonly used to obtain directory paths. However, sometimes it is not easy to match common requirements. The problem comes from lightning. He

What is the source command in Linux?

Http://zhidao.baidu.com/question/378390415.html   Command usage: Source filename function: read and execute the command in filename in the current bash environment. Note: This command is usually replaced by the "." command. For example, source/etc/

[One Linux Command every day] 08. usage of the Time Command in Linux

In Linux, the time command is often used to calculateProgramRunning time (real), user-mode CPU time (user), and system-mode CPU time (sys) The most common use of time commands is to follow the commands and parameters directly after them:Time []

How to solve an error when using the whatis command in Linux

In Linux (RHEL), when I use the whatis command, for example, I want to find the meaning of the LS command, shell prompts:   But I remember it was easy to use. What happened now? I searched for the Internet and did not find any good solution.

How to Use the grep command in Linux

Use 'grep' to search for text files   If you want to find a string in several text files, you can use the 'grep' command. 'Grep' searches for the specified string in the text.   Suppose you are searching for a file with the string 'Magic 'in

Oracle Auto-start command in Linux (2)

Create an Oracle10g file in/etc/init. d/and edit the following content in the file #! /Bin/shcase "$1" instart) # Start tsnlisnter echo "Start tsnlisnter" Su-Oracle-c "LSNRCTL start" # Start database echo "Start Oracle database instance"

Tar command in Linux

Preface tar packaging is a very important command for server O & M, because many data backups need to be packaged first and then transmitted in SCP or rsync. Here we will introduce the basic commands of tar, you can easily review what commands you

Set the environment variable command in Linux -- export

In Linux, set the environment variable command -- export Syntax: export [-p] [variable name] = [variable setting value] parameter description: [-p] lists all environment variables that the shell assigns to the program. Command: displays or sets

Use the dd command in linux

Use the dd command in linux In linux, the dd command is used to perform hard disk engraving and clone the hard disk. in linux, all devices are represented as a file, dd commands are used to copy and convert file streams, so they can be used to clone

Unzip the tar command in linux

Tar [-cxtzjvfpPN] file and directory ....Parameter:-c: The parameter command for creating a compressed file (create );-X: Unlock the parameter command of a compressed file!-T: view the files in the tarfile! Note that c/x/t can only exist under the

Use the netstat command in linux

  Netstat is used to display statistics related to IP, TCP, UDP, and ICMP protocols. It is generally used to check the network connection of each port on the local machine. Command Used to monitor system resources for a long time: (view the

Gpasswd command in linux

Gpasswd command function in linux: Management Group usage: gpasswd [-a user] [-d user] [-A user,...] [-M user,...] [-r] [-R] groupname parameter:-a: Add User to group-d: delete user from group-A: Specify administrator-M: the purpose of the specified

Run the grep command in linux to find the characters with a tab.

  The main post to be deleted must be counted in the log file, and the log file is separated by tab characters. Assume that the log file name is delete. log.   Save the format and save the data as follows,   Delete date post type (11 as the main

How to set the Service Startup command in Linux

This article describes in detail the commands and methods for Setting Automatic startup of the startup service in linux, including ntsysv, chkconfig, # setup, and commands added to rc. for more information about the local method, see. Method 1:

Chmod command in Linux

1. chmod is a command for changing file permissions in linux. Common Commands include: (1) sudo chmod u + x (2) sudo chmod g + x (3) sudo chmod o + x The u, g, and o represent user, group, and others respectively. "+" indicates granting permissions,

Crontab-scheduled Task Command in Linux

  Firmware (CMOS/BIOS) post power-on self-check-à bootstrap loader (GRUB) (Load Kernel) à load Kernel (driver hardware) à START process init à read execution configuration file/etc/inittab   Stage 1: BIOS startup   1. After pressing the power supply,

How to Use the gedit command in linux

1. Start:Start from the menu: Application --> attachments --> Text EditorRun the following command from the command line: gedit2. Window description:Menu Bar: contains all the commands required to process files in gedit.Toolbar: contains a subset of

How to Use the find command in Linux

1. Search for filesIn Linux, the command for searching files is the find command, syntax:Find [start Directory] search for condition operations such as searching for abc. cpp files from the root directoryFind/-name abc. cppAll. cpp files in the

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