echo username

1. Write a script to determine whether the shell of all users on the current system is a login shell (that is, the user's shell is not/sbin/nologin), the number of these two types of users, and the string comparison;#!/bin/bashlogin= ' grep-v '/sbin/

variable test Statement-testFunction: Used to test whether the variable is equal, is empty, file type, and so on.Format:Test tested Condition or []#范围: Integer, String. File1) integer test :Test int1-eq int2 test integers are equalTest int1-ge int2

PHP is no exception! A static method (property) is a property or method that is annotated with a static keyword (for example, a static property public static username;)The biggest difference between static and Non-static methods is that their life

Installation and configuration of FTP server (Ubuntu)1. Query whether to install VSFTPD:RPM-QA |grep vsftpd (RPM Installation: Apt-get install RPM) or query the current FTP process: Ps-ef|grep vsftpd 2. Install VSFTPD server: RPM-IVH vsftpd-*.rpm

Wrote a piece of code to perform some common operations on the session:phpnamespace Home\controller; UseThink\controller;classDemo1controllerextendsController { Public functionindex () {$user= M ("City")Select (); $this->assign (' list ',$user);

--Begin auth.inc-- $id = "xxxcom"; if (!isset ($PHP _auth_user)) { Header ("Www-authenticate:basic realm=" $id ""); Header ("http/1.0 401 Unauthorized"); Require (' error.inc '); Exit } $name = $PHP _auth_user; $pass = $PHP _AUTH_PW; Require

Simple design of PHP rest architecture What is rest? REST (representational state transfer) is a design and development approach to network applications that reduces the complexity of development and increases the scalability of the

In php, we can directly add a static method before a function or variable. it is similar to a static variable in use and does not need to be instantiated. we can directly use: called, next I will give you a few examples of static methods. PHP is no

This article describes the common usage of MySQL mysql_fetch function in PHP. The following describes how to use the fetch_array, mysql_fetch_row, and mysql_fetch_object functions. For more information, see Mysql_fetch _ * column functionThe main

--Begin Auth.inc-- $id = "xxxcom"; if (!isset ($PHP _auth_user)) { Header ("Www-authenticate:basic realm=" $id ""); Header ("http/1.0 401 Unauthorized"); Require (' error.inc '); Exit } $name = $PHP _auth_user; $pass = $PHP _AUTH_PW;

--Begin auth.inc-- $id = "xxxcom"; if (!isset ($PHP _auth_user)) { Header ("Www-authenticate:basic realm=" $id ""); Header ("http/1.0 401 Unauthorized"); Require (' error.inc '); Exit } $name = $PHP _auth_user; $pass = $PHP _AUTH_PW; Require

Redhat9 Configure FTP2. Edit the/etc/vsftpd. conf file.Modify PortStep 1. Modify/etc/vsftpd. conf'New line belowListen_port= 2121Step2. restart vsftpd[Root @ home vsftpd] #/sbin/service vsftpd restartShutting down vsftpd: OK]Starting vsftpd for

In the shell, if a piece of code needs to be called repeatedly, the code definition can be called a function, which is called directly in a later script. There are two ways to define a function:1. function functionname {}2, functionname () {}Example:

chmod u+x./shxx1. Simple Shell Programming SH example executionDisplay the directory and file in which you are located$cat Example#!/bin/sh#this is to show what a example looks likeecho "Our first example"Echo # thisecho "We Are"/bin/pwdEchoecho

pre-Class review : To find the sum of divisible by 3 divisible by 200# !/bin/bash -Isum= 0 for with {1..200};d o if [$[$i%3]-eq 0]; then let Su M+="Thesum is: $sum"Bash's knowledge points :Conditional testing: Making a logical operation on a

Installation and configuration of FTP server (Ubuntu)1. Query whether to install Vsftpd:rpm-qa |grep vsftpd(RPM Installation: Apt-get install RPM)or query the current FTP process: Ps-ef|grep vsftpd2. Install the VSFTPD server : Rpm-ivh vsftpd-*.rpm

Matches the coincidence between the csdn user database and the official user, and filters out overlapping users. Process: 1. the user database obtained from csdn is imported to the local trial editplus. the system prompts that the memory is

For pages that require authentication, it is best to use the apache server for authentication. However, the interface for apache server authentication is not user-friendly. In addition, not all cases can be verified using the apache server, such as

The leakage of CSDN user data seriously threatens the security of official users. Therefore, we hope to compare the user data of the two sites and filter out the overlapping users, notify the user to change the password in time to minimize the risk.

Simple usage of Shell script automatic Telnet and execute script of remote machine [plain] #! /Bin/sh (sleep10; echo & quot; username & quot; sleep10; echo & quot; password & quot; sleep10; echo & quot; pwd & quot; sleep50; # echoexit) automatically