ccna commands

Summary of Common commands used to execute scripts in oracle databases and common commands used in oracle 1. Execute an SQL script file The Code is as follows:Sqlplus user/pass @ servicename OrSQL> start file_namesOrSQL> @ file_name We can save multiple SQL statements in a text file, so that when we want to execute all the SQL statements in this file, we can use any of the following

Common DOS commands and commands for handling files1. Common DOS commandsDrive letter: Enter the specified drive letter.Dir lists the files and folders in the current directoryMD Create DirectoryRD Delete Directory Note: Rd cannot delete non-empty folders, and can only be used to delete folders.CD into the specified directoryCD: Go back to the top level directoryCD \ Go back to the root directoryecho "Hello

Summary of common functions used to execute linux commands in PHP, and summary of phplinux commands In general, php is rarely used to execute linux commands, but in special cases, you may use these functions. I used to know that there are two functions that can execute linux commands: exec and shell_exec. In fact, ther

Common Linux commands and common linux commands 1. User-relatedUseradd [user name] create a userPasswd [user name] change the password for the userSu-User Name SwitchingExit to the root user 2. Create files and directories(1) create a file: touch [file name](2) create a directory: mkdir (make directories)Mkdir-p [directory name]-P recursive Creation 3. Switch directory: cd (change directory)Cd [Directory]Si

Basic Search commands and information in Linux, and query commands in linux Searching for commands and hardware information is the most common operation for daily system management and maintenance. Next we will make a brief comparison of the Basic Search commands in Linux and list some common hardware information view

Common Methods for running system commands in python (full) and python commands The details are as follows: 1 OS. system For example, if you run the following command in ipython, the running status is returned. OS. system ('cat/etc/passwdqc. conf ')Min = disabled, 24, 11, 8, 7Max = 40Passphrase = 3Match = 4Similar = denyRandom = 47Enforce = everyoneRetry = 3Out [6]: 0 2 OS. popen () Popen (command [, mode =

When writing operations scripts in Python, it is often necessary to execute the commands of the Linux shell, the commands module in Python is dedicated to invoking the Linux shell command and returning the status and results, here are the 3 main functions of the commands module:1. Commands.getoutput (' Shell command ')Execute shell command, return result (String

We use the Accton command to turn process statistics on or off, and if not with any parameters, it means to turn off process statistics. Its main parameters are as follows:(1)-V or--version, indicating that the version information is displayed and exited.(2)-H or--HELP, print help information.In the Linux system to start process statistics must use the Accton command, and must use the root identity to run, the Accton command in the form of Accton file, and file must exist beforehand. We can use

Label:This article describes some of the commands commonly used in MySQL, including the use of creating and modifying databases, tables in databases, MySQL Rights management commands Grant, REVOKE, and so on. Common commands for creating and managing MySQL Databases:1, use the show statement to find out what database currently exists on the server:Mysql> SHOW DAT

Common commands for PHP database operations and common commands for php databases. Common commands for PHP database operations and common commands for php databases? Php sets the character set header (content-type: texthtml; charsetutf8); connects to the database and determines whether the database is successful or not

Recently, I was reading "deep understanding of computer systems", which really gave me a better understanding of CPU. As we all know, in fact, the programs we write in advanced languages are compiled into executable programs. The files that store executable programs are actually some machine codes that can be executed by hardware. In this step, we call it Machine Instruction. At this step, we often think that we have reached the so-called "bottom layer ". Some time ago, I also raised a questio

Summary of mysql Common commands and mysql Common commands This article introduces some commonly used commands in mysql, including creating and modifying databases, tables in databases, permission management commands grant and revoke in mysql. Common commands for creating an

In Linux, how does one view, kill, and start processes? (Common commands), common linux commands Keywords: linux Process query, killing process, Starting Process 1. Check the process Ps command to find the process-related PID: Ps a shows all programs under the current terminal, including those of other users. Ps-A shows all programs. When listing programs in ps c, the real command name of each program is di

When I visited the blog Park yesterday, I saw the lumaqq. net, it feels very good, so I went down to study it. I felt a little bit like miniqq, mainly based on the console, taking up a small amount of memory and being able to modify a lot of things myself, remove unwanted junk information. Although I do not know much about the implementation principles in it, I still know a little about applications and instructions. My personal feeling is lumaqq. net can do a set of chat

FTP commands are one of the most frequently used commands by Internet users. Whether using FTP in DOS or UNIX operating systems, a large number of FTP Internal commands are encountered. You are familiar with and flexible to use FTP Internal commands, it is very convenient for users. For users who use dial-up Internet a

Common commands of yum and rpm and Common commands of yumrpm Directory Installation Package of common command packages for yum and rpm query package uninstalling all other options for yum and rpm all options in yum Common commands for yum and rpm Yum and rpm have many usage methods. I will only introduce what we may encounter frequently. If it is not commonly use

How to monitor the execution progress of Linux commands using pv commands If you are a Linux system administrator, you must spend a lot of time on the command line to install and uninstall software, monitor the system status, copy, move, and delete files, and so on. In most cases, you enter a command and wait a long time until the execution is complete. Sometimes the command you run is suspended, and you ca

Common linux commands 2 and common linux commands Before reading this article, you can first read this article, which provides 20 commands that are very useful to new Linux beginners. This article is written in what was not found in the previous article and is currently used by me. This article only allows me to view linux-related

Common Linux commands (version 2)-Help commandsHelp commands 1. man [manual]:/usr/bin/man Obtain the help document of the command or configuration file, and check the help of the command first. Format: man [command or configuration file] # Call more E. g. Man ls # view the help information of the ls command Man services # view the help information of the configuration file services Appendix-there are nine t

Common SecureCRT commands and common securecrt commands Common commands:1. ls only lists file names (equivalent to dir, dir can also be used)-A: lists all objects, including hidden objects.-L: a list that contains most attributes of a file.-R: recursive display.-- Help: the help of this command. Ii. Change directory with cdCd/: Enter the root directoryCd: Return