Sed and awk are * powerful text processing artifacts in Nix command lines. they are all row-oriented, or they process text in one row and one row. They read content from standard input or files and execute script commands in one row, then print the
ES6 is a very practical introduction of new features, es6 is very practical new features
ECMAScript 6 is getting closer and closer to us. As the most important dialect of ECMAScript, Javascript is about to usher in a major syntax change. InfoQ has
SQL Injection attacks are specially crafted SQL statements submitted by attackers in the form to modify the original SQL statements. If the web program does not check the submitted data, this will cause SQL injection attacks.
General steps for SQL
Linux basic commands-text editing vimGuideThis article describes the general usage of vim (version 7.4,Vim is a powerful text editor and enhanced version of vi.The most common commands for editing a file using vim are:
Vim file is a new file or an
ReThe module contains regular expressions. This chapter willReThe main features and regular expressions of the module are described.
What is a regular expression?
A regular expression is a pattern that can match a text clip. The
ArticleDirectory
Escape/Unescape
Encoding/Decoding
These scripts are intended to explain how to "hide" HTML and/or Javascript from other people who view your page's source code. it is not foolproof, but it does make it more difficult
Use Apache rewrite Technology
The URL redirection technology is required for PHP projects. The basic requirement is to redirect/user/heiyeluren to/user. php? Uid = heiyeluren and other URLs. Of course, you can also redirect/article/200707291011
Article Which is incorrect or ambiguous ~~~
Configurations and functions related to PhP string escaping are as follows:1. magic_quotes_runtime2. magic_quotes_gpc3. addslashes () and stripslashes ()4. mysql_escape_string ()5. addcslashes () and
It took me a long time to adapt to the new company. Now I am dedicated to service. Many SharePoint problems suddenly emerge, so I am overwhelmed ...... I will write down the solution of these problems later: This plus sign is not a new problem. I
Next, go to the string section above and proceed to the section in the following table.
Format
Camelize | capitalize | underscore | dasherize | inspect
Deformation
Toarray | succ | times
One useful method here is
If the URL contains special characters, such as #, +, and &, and is not escaped, HTTP cannot be used for downloading (the client accesses httpserver through the get method ).
For example, the URL is: http: // 192.168.49.20:
Linux shell Escape Character metacharacter wildcard special character summary, shell escape1. linux shell wildcard (wildcard)
Wildcards are processed by shell (not by the command statements involved, but we have not found any introduction to these
Problems related to C ++ connection to mysql
Recently, I have been familiar with a lot of database things. I have been familiar with SQL server, but I started to connect to mysql because of project requirements. Let me talk about this cainiao
// GPC filter, automatically escape special characters in $ _ GET, $ _ POST, and $ _ cookies to prevent SQL injection attacks$ _ GET = saddslashes ($ _ GET );$ _ POST = saddslashes ($ _ POST );
Copy codeThe Code is as follows: The following is an
Special Character and character match
Special characters
\ Xn matches a character whose ASCII value is equal to n, and n must be two charactersHexadecimal integer. For example, \ x41 matches the character "". It can indicate all non-printable
REWRITE pseudo-static
1. Apache configuration:Go to the/etc/httpd/conf/directory and open the httpd. conf file.Enable rewrite# LoadModule rewrite_module modules/mod_rewrite.so remove the previous #Enable. htaccess AllowOverride None to:
Set and E are translated as "settings", which is equivalent to "orders" in mathematics ".
For example, set X = 5 means X = 5.
Common use example of set:
1. set display environment variables:
For example, enter:
Set displays all current system
If you want to find a file with * in the file name, you need to escape *, that is, add a \ before it \. Ls \ *. txt. Regular expressions have the following special characters. Escape
Special characters
Description
$
Matches the regular expressions and form regular expressions of all content in the form.
The requirement is as follows:There is now a formCopy codeThe Code is as follows: ...... The ellipsis in the form represents the content, which has a variety
as a concept, regular expressions are not unique to Python. However, the regular expressions in Python still have some small differences in the actual usage.
This article is part of a series about Python regular expression articles. In the first
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