represents what AWK looks for in the data, and the action is a series of commands that are executed when a match is found. Curly braces ({}) do not need to always appear in the program, but they are used to group a series of instructions according to a particular pattern. pattern is the regular expression to be represented, surrounded by slashes.Example#输出df第一个字段 [[email protected] ~]# df-ph |awk ' {print $} ' #输出df第一个和第三个字段 [[email protected] ~]# df-ph |awk ' {print $1,$3} ' # Output DF last f
Before we published an article "256 Template official website point SEO optimization analysis record" records the site some basic ranking situation, as well as the site collection, snapshots and other situations. Through the comparison of the previous site, we found that Baidu's 256 template network included in the speed or very fast, to achieve the same day can be included in the speed, in general or relatively satisfactory, below we come to specific
Web security practices (1) Common http-based architecture analysis tools
"When you want to do something better, you must first sharpen the tool." in Section 1, we are familiar with commonly used tools. The subsequent sections will also discuss how to write the details of these tools by ourselves.
1.1http extension tool
With the advent of the Internet era, there are more and more network users. It is increasingly important to optimize websites to improve performance and improve user experience. This poses new challenges to developers. So how do developers determine the performance of a website and whether they need to be optimized? If optimization is required, what are the bottlenecks of the website? Where to optimize? At this time, an excellent Web performance analysis
Resolving repetitive LaborIs it cool to analyze a single virus and analyze n viruses to write reports very mechanically.1) samples to download multiple files, these files when writing reports to add these files MD52) Write the report is clearly 17 MD5, the actual sample has 18 cases. I don't know who the MD5 is.3) to batch detect a class of samples, and then batch copy out of the situation.Later joined the idea of colleagues, the document into Hex.txt seal up.Command line version Tool"Windows Pr
nid=0x2265 waiting on condition [0x00000000] Java.lang.Thread.State:RUNNABLE"http-bio-8080-exec-20" daemon prio=10 tid=0x08a35800 nid=0x1d42 waiting on condition [0x70997000] Java.lang.Thread.State:WAITING (parking) at Sun.misc.Unsafe.park (Native Method)-Parking to wait for(a java.util.concurrent.locks.abstractqueuedsynchronizer$conditionobject) at Java.util.concurrent.locks.LockSupport.park (Locksupport.java:156) at Java.util.concurrent.locks.abstractqueuedsynchronizer$conditionobject.await (
Here we use Microsoft Web application stress tool for web stress testing, Microsoft WebApplication stress ToolDeveloped by Microsoft's website testers, it is a set of tools specifically used for actual website stress testing. With this powerful stress testing tool, you can use a small number of client computers to simulate a large number of users.
Before the website is launched, test the website you designed in a real environment to identify potential
Keyword analysis toolsGoogle:Adwords keyword tool: Common queries for specific keywords and extended matchingHttps://adwords.google.com/select/KeywordSandbox
Baidu:Keyword tools: Common queries for specific keywords, extended matching, and query popularityHttp://www2.baidu.com/inquire/dsquery.php
Sohu:Keyword tool: keyword search popularityHttp://db.sohu.com/regurl/pv_price/query_consumer.asp
Netease:Key
Here are three open source tools, PMD, Checkstyle and findbugs, with emphasis on ant calls, and commercial software Jtest is said to be a well-known tool for code analysis, haha.
Checkstyle (http://checkstyle.sourceforge.net/) version 4.2
Introduction: Checkstyle is a development tool that can help programmers follow code specifications to write code,
It automatically handles these annoying but important t
Follow the Spring Developer Tools Source Analysis: Second, class path monitoring, then see the previous mentioned how these classes are configured, how to start.
Spring-boot-devtools uses the automatic configuration of Spring boot, and we first focus on the parts of the auto-restart in the local development environment.
In the localdevtoolsautoconfiguration mainly contains the Livereload and restart of the
Next Spring Developer Tools Source Analysis: Second, class path monitoring, then look at the previous mentioned how these classes are configured, how to start.
Spring-boot-devtools uses the automatic configuration of Spring boot, we first focus on the automatic restart in the local development environment.
In the localdevtoolsautoconfiguration mainly includes the livereload and the reset configuration, the
, so all network addresses currently use slashes as delimiters.Windows uses a slash as a parameter identifier for a DOS command prompt, and in order to avoid confusion, a backslash is used as the path delimiter. Currently, the file browser on the Windows system uses a backslash as the path delimiter.Conclusion:1. The browser address bar URL using a slash;2. Use a backslash on the Windows file browser;3. The path that appears in the HTML URL () property must use a slash when the path specified is
the TIME_WAIT state. When there are too many concurrent requests, there will be a lot of time_wait that can not be disconnected in time, which will consume a lot of port resources and server resources. Netstat-an|awk '/tcp/{print $6} ' |sort|uniq-c5 established5 LISTEN2048 time_waitVim/etc/sysctl.conf#开启重用, allowing connections to the TIME_WAIT state to be re-used for new TCP connectionsNet.ipv4.tcp_tw_reuse = 1#开启TCP连接中TIME_WAIT连接的快速回收Net.ipv4.tcp_tw_recycle = 1#控制同时保持TIME_WAIT套接字的最大数量Net.
The Oracle tutorial you are looking at is: Understanding and Using Oracle 8i Analysis tool Logminer.
Oracle Logminer is an actual, useful analysis tool that Oracle has provided from the product 8i, which makes it easy to get the details of Oracle Redo log files (archived log files), especially The tool can analyze all the DML (INSERT, UPDATE, DELETE, etc.) statements for database operations, and can also pa
Analyer Tools Program Supect AnalysisFirst of all, this tool is not the eclipse comes with, so you need to download memory Analyer tools (called Mat, also can be integrated into eclipse as plug-in), I download memory Analyer tool. After installing the memory Analyer tool, proceed to the following steps:1. Click on the Load Heap button in step 5 to download the stack an
of human resources, automated testing is imperative.
Here are my top 8 Java test tools and frameworks.
1. Arquillian
Arquillian is a highly innovative and extensible test platform based on the JVM, allowing Java developers to easily create automated integration, functionality, and acceptance testing. Arquillian allows tests to be performed at run time. Can be used to manage the life cycle of single or multiple containers, bundling test cases, depe
Recently read the article "Speed Up your app". This is an article on the Performance analysis and optimization of Android apps. In this article, the author describes his app analysis optimization rules, the tools and methods used. I think we should learn from it. Good English readers can read the original text (link: http://blog.udinic.com/2015/09/15/speed-up-you
a certain number of users. JBuilder inherits the features of C ++ Builder/Delphi, which is very good in visualization and easy to use. Because of the characteristics of the Java language, they have superior performance in network development, and the object-oriented features are high, and many component technologies are supported, cross-platform features make it more and more important in the development of the present and future. However, the underlying development and multimedia development o
Open-source C ++ static analysis tools
Java has some excellent and open-source static analysis tools, such as findbugs, checkstyle, and PMD. These tools are easy to use and beneficial for development. They can run on multiple operating systems and are free of charge.
Comme
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