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]

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

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

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/

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 []

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.

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

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"

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

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 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

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

  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 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

  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

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:

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,

  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,

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

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