file exit

The shortcut keys I use Command mode : Wq or ZZ Save file and exit : Q Do not save file exit : Set Nu Sets line number :/Down Find ：？ Look up :%s/old/new/g replaces all old characters in text : N1,n2 s/s1/s2/g The S1 character from the N1 to the N2

Already familiar with the normal format input and output functions scanf and printf, the format file input and output function is to add F to the two-function names, indicating that "read-write objects are disk files rather than keyboards and

Share a use of PHP's GD library to generate thumbnails of examples, we refer to the use of the bar The code is as follows: Header ("CONTENT-TYPE:TEXT/HTML;CHARSET=GBK"); Ini_set ("Date.timezone", "Asia/chong"); Determine if the file is

Copy Code code as follows: Header ("CONTENT-TYPE:TEXT/HTML;CHARSET=GBK"); Ini_set ("Date.timezone", "Asia/chong"); Determine if the file is empty if (empty ($_files)) { echo "Upload file too large"; Exit } To determine if there

Many do not say, directly on the code: Copy Code code as follows: Ignore_user_abort (TRUE); Set whether to break script execution when client disconnects Set_time_limit (0); $file = '/tmp/ignore_user.txt '; if (!file_exists ($file)) {

Function The PHP program has been written for a long time, and naturally knows the functions he provides, and he offers a lot of features that really feel good, but sometimes it turns out that PHP lacks some functionality and always produces ideas

Getshell + two SQL injections at the front-end of the p2p online lending system (ignore any defense and no logon required) The demo has a dongle.Looking at the official website descriptions, it is still quite cool.Http://www.shangdaixitong.com/index.

Now there are a lot of prank programs on the Internet, the light repeatedly re-launch the system, the heavy weight format the hard disk or even rewrite the hard disk track, next we will introduce three DAMAGE software repair. I. Repair after

Email client encryption: 1. Foxmail Foxmail is often used by everyone. Its convenient template-based input and simple multi-account management make it stand out among many mail client software, which is recognized by everyone. Foxmail introduces an

Macbuntu is a set of packages that can be modified from Ubuntu to Mac. It is installed using shell commands, and the simulation results are very realistic and practical. For details about the installation process, refer to installing Macbuntu in

The ORACLE tutorial is about Oracle database backup. I. significance:When we use a database, we always hope that the database content is reliable and correct. However, due to computer system faults (hardware faults, network faults, processes)Faults

Provides various official and user-released code examples and code reference. You are welcome to exchange and learn how to process file loading, file download, and other related functions. Class http {/*** Download an object through http** Reads

C file I/O SUPER detailed tutorial, o SUPER This article mainly referencesC Primer Plus (5th & 6th Edition) You can choose to read part of this article, some content may be too obscure to readers who are not familiar with MS-DOS.Basic knowledge of C

Transferred from: http://blog.csdn.net/kingstar158/article/details/6859379In the view of C + + programming ideas, each exercise is basically using ofstream,ifstream,fstream, before a rough knowledge of its usage and meaning, after reading a few

Secure File Download using PHPThe procedure is as follows:$ File_name = "info_check.exe ";$ File_dir = "/public/www/download /";If (! File_exists ($ file_dir. $ file_name) {// check whether the file existsEcho "file not found ";Exit;} Else {$ File =

We must use the # _ FILE variable to upload FILES in php. This automatic global variable $ _ FILES is supported since PHP 4.1.0. Before that, PHP supports the $ HTTP_POST_FILES array starting with version 4.0.0. These arrays will contain all the

Some of the following functions in common Linux System Call commands are outdated and replaced by new and better functions (gcc will issue a warning when linking these functions ), however, they are retained for compatibility reasons. These

  Design a prompt menu for user selection, and perform operations and display based on user selection. Menu: 1. Start vi Editor 2. Start x-windows and enter the graphic interface 3. Start the background printing process. 4. Exit ctrl + c. #!

Java code #! /Bin/bash # memcached Init file for starting and stopping # chkconfig: 35 80 30 # description: memcached startup script # Source function library .. /etc/rc. d/init. d/functions MEMCACHED_OWNER = "root" MEMCACHED_HOME

Directly with the URL will open the picture in the browser,To directly pop up the Save box, you can use the following methodThe following $dir refers to the absolute address of the image on the serverfunctionidownload () {$name=$_get[' Name '];//Get