head prestige

The head and tail of a Linux command every dayIn fact, as long as you understand the meaning of these two English words, you can understand the role of these two commands. Head: The tail is the opposite: the tail, the former print the contents of the file, the latter print the file tail contentHead Test.log tail test.log both are default print 10 lines of course, the number of printed lines can also be adju

help;U move up the half screen;W can specify which line to start displaying, which is displayed from the next line of the specified number, for example, 6, which is displayed from line 7th;G jumps to the first line;G jumps to the last line;P n% jumps to n%, such as 10%, which means that it starts at 10% of the entire file content;/pattern searches for pattern, such as/mail, to search for mail words in a file;V Call VI Editor;Q Exit Less!command Call the shell, you can run the command, such as!l

Linux environment variables, cp,mv command, More,less,cat,tail,head, use[Email protected] ~]# cp/usr/bin/ls/tmp/[Email protected] ~]# path= $PATH: Use of/tmp/path[Email protected] ~]# echo $PATH/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/root/bin:/tmp/[[email protected] ~]# Vi/etc/profile Permanent Entry Add Path variable value in this configuration file[[email protected] ~]# echo $PATH use of new assignments/usr/local/sbin:/usr/local/bin:/usr/

Blink of an eye, December is coming, and many people are quite looking forward to Christmas also to come. In this festive day of Christmas, of course, in our QQ avatar, forum avatar, blog avatar on display. So, small make use can cow image diy Christmas avatar, I want to do not have a beard personality of Christmas mm. Below, and small weave together to see the cow image making Christmas personality Avatar method. Let's take a look at the effect chart: Effect Chart One The first s

The trick of SleepingAccording to the medical and my experience, observation, a person really sleep only two head, the rest is a waste of time, lying on the pillow dream, no one does not dream. As for waking up feeling that he didn't dream, it was because he had forgotten.Usually a person sleeps two head is enough, why somebody sleeps seven, eight head? That is y

Topic DescriptionEnter a list that prints the value of each node in the list from the end. Online programming chain interview: Print a list from the end of the head Enter a description: Table header entered as a list Output Description: Table header for "New linked list" that needs to be printed Analysis:This problem seems to be relatively simple, but in fact there are a lot of ideas can be solved. Here's a simple summary. Idea 1:Traversing the

WordPress Head of the code is very much, including the WordPress version, contextual, the first article, home page meta information and other redundant code, these are meaningless to the blogger, but also to the safety of the site has a certain impact, also did not know what the code is the role of How to come and how to delete. WordPress Head Cleanup code is as followsInsert the following code into the he

These techniques are mainly about META tag settings, but not in line with the Web standards, just pay attention to the end of the "/" close tag, but since it is an introductory tutorial, write more details. Favorites Small Icon If you add this site to your Favorites folder, you can see that the IE icon before the Favorites URL becomes a special icon for this site. To achieve this effect is very simple, first make a 16x16 icon, named Favicon.ico, placed in the root directory. Then embed the fol

Web|web standard These techniques are mainly about META tag settings, in fact, not in line with the Web standards, as long as the note in the final "/" off the label can be, but since it is an introductory tutorial, write more detail. Favorites Small Icon If you add this site to your Favorites folder, you can see that the IE icon before the Favorites URL becomes a special icon for this site. To achieve this effect is very simple, first make a 16x16 icon, named Favicon.ico, placed in the root dir

Work needs to achieve the image of the nail-nail group head of a function, is the personal head together to display, looked at the market on the app like micro-letter group chat Head is a combination of the head of QQ is not, others seem to have no. To share with you how to achieve it. First, let's look at the effect

When we develop, we often count some access logs, and the URLs in the access log are massive, and many of them are duplicate content. Take the URL, for example, to count the URLs with the first 5 frequency occurrences in the URL, sorted by the number of occurrences in descending order. Linux command:cat url.log | sort | uniq-c |sort-n-r-k 1-t ' | awk-f '//' {print $} ' | head-5 Now to analyze the meaning of these command combinations. 0 Access Log Sam

Elasticsearch-head is a elasticsearch cluster management tool, which is a stand-alone Web program written entirely by HTML5, which you can integrate into ES through Plug-ins. or directly download the source code, open index.html on the local run it. The tool's git address is: https://github.com/Aconex/elasticsearch-head Plug-in installation method: 1.elasticsearch/bin/plugin-install Aconex/elasticsearch-

I want to talk about my views on the Chinese version of head first SQLIn fact, my translation of this head first SQL Chinese version: I think: it is really bad translation.Compared to the first C # in the translation of head first, it is really a few degrees worse ...But you know ... Brother Fei is over the level six ... More than 550 points ... Speaking of a-lev

more efficient searches without having to understand the complex logic behind them.E. About Lucene I've written a few blogs in the front, and open source on GitHub is a demo, the blog address is: http://www.cnblogs.com/hanyinglong/p/5387816.htmlF.elasticsearch Official website: https://www.elastic.co/products/elasticsearch/2. Prepare the installation filesA. 工欲善其事 its prerequisite, through the above simple description presumably you already know what Elasticsearch is doing, then we need to use

Title Description: http://ac.jobdu.com/problem.php?pid=1511Enter a list to print the values of each node of the list from the end of the head.Input:Each input file contains only one set of sample test specimens.Each set of test cases contains multiple lines, one integer greater than 0, representing the node of a linked list. The first line is the value of the first node in the list, and so on. When input to 1 indicates that the linked list is completed. -1 itself does not belong to the linked li

China heavy-duty truck Cyrtomium Fortunei tractor into the long-head heavy card market, the domestic production of long-head trucks of enterprises to increase a strong competitor. So, how does the coherent enterprise deal with this model and the long-head heavy truck market? With these questions reporters interviewed the Spring Breeze Liu Automobile Market depart

ArticleDirectory Option Note: Example Show the file header Head [Options] [File-list] Parameters File-list ToHeadThe list of path names of the displayed files. When multiple files are specified,HeadDisplay the corresponding file name before displaying the first few lines of content of each file If no file is specified, the head obtains the input from the standard input. O

Tags: add dal json search for easy git nload management. bat ElasticSearch5.5.1 configuration and installation of plugins Elasticsearch5.5.1 Installation: Https://www.elastic.co/cn/downloads/elasticsearch Download zip, unzip Run C:\elasticsearch-5.5.1\bin\elasticsearch.bat Visit http://localhost:9200/ The installation was successful. Environment: WINDOWS10 Enterprise Edition X64 JDK-1.8.0 ElasticSearch-5.5.1 ES5.5.1 plug-in directories available for online installation: Note: All CMD comman

If the program has an exception, the thinkphp default is to throw 404 headers.ThinkPHP3.2.3 Related code:#/thinkphp/library/think/think.class.php /** * Custom exception handling * @access public * @param mixed $e Exception Object */ static public Function appexception ($e) { $error = array (); $error [' message '] = $e->getmessage (); $trace = $e->gettrace (); if (' E ' = = $trace [0][' function ']) { $error [' file

Before writing a lot of front-end interface, but did not read a full HTML and CSS books, are used to check what, recently spare time to consolidate the knowledge of the front-end Foundation, read the "Head first HTML and CSS", feel this book is a little too simple, but still learned a lot , this is just a matter of summarizing some of the points of knowledge that are important or that you have not noticed before.1. How element attributes are written: