asterisk commands

Knowing how to configure network commands is a must-have technique for general technicians. After some time of research and study, I have summarized some common commands and examples for future reference. The traditional IP advanced routing commands between and can be used in common and achieve the same purpose, but the IP is more powerful and can achieve more co

Sed commands use metacharacters with regular expressions, and sed commands use regular expressions 1. IntroductionSed is a non-interactive editor. It does not modify the file unless you use shell redirection to save the results. By default, all output rows are printed to the screen.Sed editor processes files (or inputs) row by row and sends the results to the screen. The specific process is as follows: firs

1. shell script execution Method There are two ways to execute shell scripts. One is to generate a new shell and then execute the corresponding shell scripts. The other is to execute the shell in the current shell and no longer enable other shells. To generate a new shell and then execute scripts, add the statement at the beginning of the scripts file :#! /Bin/sh. This is the general usage of script files (. Sh. In this way, the new sub-shell (new sub-process) is started, and then the command is

Directory Initial version 2.0 update Download Returned directoryInitial version In non-mvvm scenarios, developers can directly use commandbinding to provide execution methods for pre-defined commands (such as applicationcommands. Open), and then set pre-defined commands in the corresponding icommandsource. However, in mvvm, command execution is usually performed in viewmodel, and viewmodel directly re

. h file/** * turn into an asterisk tool */@interface asterisktool:nsobject//Turn the phone number 第4-7位 into an asterisk + (NSString *) Phonenumtoasterisk: (nsstring*) phonenum;//mobile phone number 第5-14位 to Asterisk + (NSString *)

The use of function parameters has two important aspects to note: 1. How the function parameters are defined 2. How parameters are parsed in the process of calling a function First of all, there are four main ways to define function parameters in

This article uses php to hide the middle digit of a mobile phone number. the ID card number only shows the last four digits. For more information, see the latest project, you may need to hide the middle digit of a person's mobile phone number. the

Use ereg to determine whether a string contains asterisks. use ereg to determine whether a string contains asterisks. Reply to discussion (solution) Strpos can be completed. Var_dump (@ ereg ('\ *', 'ABC'); // bool (false)Var_dump (@ ereg ('\ *'

The final obtaining of the agent status is to call devicestate. in C, the ast_device_state is obtained. When the queue module is initialized, it registers the callback function for device status change, devicestate. c starts the thread

/** Copyright (c) 2012, School of Computer Science, Yantai University * All Rights Reserved. * Prepared by: Zhao guanzhe * Completion Date: July 15, October 13, 2012 * version number: V1.0 ** input Description: asterisks * Problem description:

The recent work has been done to pay the related work, encountered a quick payment, binding bank card when the user input 4 element "name, mobile number, ID card, bank card number", show the user card history, to do mask processing,To prevent a

The code is as follows: Method 1: function Hidtel ($phone) { $IsWhat = Preg_match ('/(0[0-9]{2,3}[-]?[ 2-9][0-9]{6,7}[-]? [0-9]?) /I ', $phone); Fixed telephone if ($IsWhat = = 1) { return Preg_replace ('/(0[0-9]{2,3}[-]?[ 2-9]) [0-9]{3,4} ([0-9]{3}[

Regular Expression method 1, the string contains more than one mobile phone number The code is as follows Copy Code $s = ' manager Wang: 13999312365 manager li: 13588958741 ';$s =preg_replace (' # (D{3}) d{5} (D{3}) # ',

[HTML]View plain copy The full type of expression, as follows:Execution (Modifiers-pattern ret-type-pattern declaring-type-pattern? Name-pattern (Param-pattern) Throws-pattern?) Modifiers-pattern representative modifier (public/protect, etc.) Ret-

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 (Str

Article Title: Traditional network configuration commands and IP advanced routing commands. Linux is a technology channel of the IT lab in China. Includes basic categories such as desktop applications, Linux system management, kernel research, embedded systems, and open source. Knowing how to configure network commands is a must-have technique for general technic

Common linux commands and common linux commands Common commands Ls display file or directory -L list file DETAILS l (list) -A: List all files and directories in the current directory, including hidden a (all) Mkdir create directory -P: Creates a directory. If no parent directory exists, p (parent) is created) Cd switch directory Touch creates an empty file Echo c

The shell command in Linux is usually the execution step: the user enters the command in the terminal, the system kernel reads the value of the environment variable in the current user's environment variable path The value of the variable is the path of the command, the command path is more than one, The system then matches the command file to find from left to right in these paths until it is found and executed, and when the command is executed, the file path corresponding to the command is sav

Tags: mysql basic command and use of the Mysqladmin commandMysql --user,-u --host,-H --password,-P --port --protocol --database Database,-DMySQL Batch processing mode[Email protected] ~]# Vim/test.sqlCreate DATABASE TestDB;CREATE TABLE testdb.tb1 (ID int,name CHAR (20))[[email protected] ~]# MySQLmysql> \. /test.sqlQuery OK, 1 row affected (0.09 sec)Query OK, 0 rows affected (0.29 sec)mysql> drop database TestDB; #删除Query OK, 1 row affected (0.25 sec)mysql> show databases;+--------------------+|

Common MySql commands and basic mysql commands Common MySQL database commands 1. MySQL Common commands Create database name; create a database Use databasename; select database Drop database name directly deletes the database, no reminder Show tables; displays tables Describe tablename; Detailed description of the tab