In linux shell while, when reading a file, an error is reported. When... do reads the file, an error is returned. Script Name: while_readFile.sh script content: Shell code #! /Bin/sh while read LINE abc do echo $ LINE done Note: there is a space
How to delete all files in the directory (keep the top level directory)
I want to delete directories and files in a directory, but keep the most advanced directory. How to say, to delete all directories and files under/upload/, but keep the/upload
It's okay, I wrote a list of functions I want to turn off.
Includes traversing files under this folder, directory subdirectories reading current files under directories and files delete directory subdirectories under current folder and files above
First look at the code
Copy Code code as follows:
?
function Deldir ($dir) {
Delete the files in the directory first:
$DH =opendir ($dir);
while ($file =readdir ($DH)) {
if ($file!= "." && $file!= "...") {
$fullpath =
So is there a way to automatically clean up temporary folders?
The following code is a simple time to clean up the file under the folder PHP code.
PS: This code, if you do not restart the site will continue to perform, so only for the local
Sometimes we need to use php to delete all the files in the folder and its folder, so we can use the following code. For more information, see. Add features as required
The code is as follows:
Function deldir ($ dir ){
// Delete the files in the
1. Setting instructions for file upload in php.ini
2. File Upload Process
(1) Upload file Submission Form HTML code:
Adminstration-upoload New files Upload New files
(2) PHP processing upload file code
① in the PHP script, the
Folder inside just a picture each time is more than two picture pictures show not come out but look at those two pictures src is empty is the following image of SRC This is why?
$dir = "upload2/"; if (is_dir($dir)){ if ($dh = opendir($dir)
It's all right. Write the function that the directory wants to close
including traversing files under this folder, directory subdirectories read the current file under directories and files delete the directory subdirectories under the current
Today bored to practice the PHP traversal file directory program, wrote the following two programs, but the quality is not very good, Pat ~ ~ ~ ~
1, clear PHP cache files
Copy Code code as follows:
function Read_dir ($dir, $file)
{
Php deletes the function code of all files in the folder and its folder. Copy the code as follows :? Functiondeldir ($ dir) {delete the files in the directory first: $ dhopendir ($ dir); while ($ filereaddir ($ dh) {if ($ file !. $ File !..) {$
Sometimes there are more and more temporary files generated in the cached folder of the website. if the files are not cleaned up for a long time, tens of thousands of cached files will exist in the folder, and many ftp tools may not be able to
Use of the unlink () and rmdir () functions for deleting files and folders in PHP. Let's take a look at the code copy code as follows :? Functiondeldir ($ dir) {delete the files in the directory first: $ dhopendir ($ dir); while ($ filereaddir ($ dh)
8.1.1 differences between a relational database and a file database system 1. relational databases are characterized by Data structuring, while file systems are unstructured. the logical structure of a relational database is a two-dimensional table,
This article mainly introduces the simple interaction between PHP and the server file system. it is very good and has reference value. if you are interested, let's take a look.
1. setting commands for file upload in php. ini
2. file upload process
This article mainly introduces the PHP traversal directory files commonly used methods, combined with the example form summary of PHP for files and directories commonly used traversal skills and operating efficiency, has a certain reference value,
SyntaxOpendir (path, context)*/$ D = dir ("c: windows"); // open the directory and assign the value to the variableEcho "handle:". $ d-> handle. "n"; // handel attribute of the output DirectoryEcho " ";Echo "path:". $ d-> path. "n"; // path
PHP implementation of the directory or folder traversal, and delete the specified file code, very simple, suitable for beginners to refer to friends.The main functions are as follows: Traverse the file under this folder, Directory subdirectory, read
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