zfs meaning

Awk in the meaning of NF and nr, in fact you already know the meaning of NF and nr, NF is a text file in a row (a record) of the number of fields, NR represents the text file of the number of rows (records). It is often used in programming, especially when it comes to data processing. It is recommended that you look at the information about awk programming, which is a very powerful tool.Look at an example:

apps. That's because, for them, that's what it means to write code and what they want to do with code. The problem, however, is that they don't know how to express their ideas correctly. So we can't just look at the surface meaning of language. Understanding the true meaning of the lines is also one of our work as educators. I remember a pastor who said a few years ago that even in a dilemma, we should tel

What is the meaning of being alive? Do you feel bored alive? Why do you want to live?Recently saw Nolan's Batman trilogy, feeling very much. Bruce as a rich second generation, witnessed the death of the parents, but also helpless to the dark social situation, the future is very lost to him, in order to find ways to fight criminals, volunteer and prisoners live together, experience their lives, and to the Shadow Warrior Alliance hone their will, eventu

Q:Like what:[Email protected] ~]# Ps-ef | grep apachejetspeedRoot 18887 18828 0 08:09 pts/0 00:00:00 grep apachejetspeedis the process running or not running? Which of the list is 18887 and 18828 which is the meaning of pid,0, which can explain the specific meanings of each output item in detail.A:PS: Show a process-a displays all programs.-E The effect of this parameter is the same as specifying the "A" parameter.-F Displays Uid,ppip,c and St

Summary of geometric physical meaning data of SVD singular value decompositionLearn about SVD singular value decomposition online data aggregation:1, about the SVD of a concept article, this article is also the originator of several subsequent articles ~Http://www.ams.org/samplings/feature-column/fcarc-svd2, about the analysis of the physical meaning of SVD more thorough articleHttp://www.cnblogs.com/LeftNo

The meaning of port-specific in MOS.Today, one of the Buddies said a bug,bug number is bug 16884689, the key point is not what kind of bug, the key point is that the description of the bug has this point: Impact platform Port-specificWhat does this port-specific mean? So I used "port-specific" as the keyword in the MoS search for a moment, found an article:Size of Redo Log Files (document ID 111655.1)Problem Description-------------------You notice it

Original link: http://www.cnblogs.com/ylhome/archive/2010/01/07/1641121.htmlConvolution this is a "signal and system" in the discussion of the system to the input signal response and proposed. Because it is the analog signal discussed, so often with cumbersome arithmetic down, very simple problem of the essence is often overwhelmed by a large pile of formulas, then convolution what is the physical meaning?The convolution is represented as Y (n) = x (n

In general we will write this: Copy the Code code as follows: if ($_get[' time ']==null){$time = time ();}Else{$time = $_get[' time '];}Echo $time;If get has time this value is brought into the variable.?> If only simple judgment, according to the above writing is too troublesome, and the performance is not high! Can be changed to use ternary one-time: Copy the Code code as follows: $time = ($_get[' time ']==null)? (Time ()): ($_get[' time ');Echo $time;?> Much more concise! Probably e

Some time ago in Baidu found a bit .... The meaning of a man alive.A lot of people are the same confused, in fact, 80% of people do not like to work,. Work just to make a living! 20% of people work for the purpose of life!80% of people are struggling! Only 20% of the people struggle to determine the direction of their life goals (that is, the motivation of efforts)! I admire the bi shumin There's no point in life, everyone has to make sense for

The meaning of covarianceReproduced in: http://bbs.mathchina.com/cgi-bin/topic.cgi?forum=5topic=14444 (thanks to the original author)In probability theory, two random variables X and Y are related to each other in roughly the following 3 cases:When the joint distribution of x, Y is like that, we can see that there are roughly: the larger the X, the greater the X, the smaller the Y, the less the case we call " positive correlation ".When the joint dist

Common paging functions on the Web: What is the meaning of this sentence? $url _query=ereg_replace ("(^|) page= $page", "", $url _query); (^|) This is the meaning of the sentence: ^ represents the starting position, or in the [^..] Non-representative; The meaning of being or; ------ (^|) is ^ or or what? In addition, it is not possible to appear in the URL ^

"^ Quot; symbolic meaning of the RewriteCond command in. htacess? In RewriteCond % {REQUEST_URI }! ^ The meaning of ^ in the group command is in RewriteCond % {REQUEST_URI }! ^/Group/command ^ meaning ^ The Locator specifies that the matching mode must start with the target string, ^ Start with this string. Starting from matching strings, complete is, starting

SQL statement meaning DB: query ( quot; SELECTCOUNT (*) FROM quot ;. DB: table (vgallerys ). quot; whereuidIN (SELECT nbsp; pre_home_friend.fuidFROMpre_home_friendWHEREuid $ discuz_uid) meaning of the SQL statement DB: query ("select count (*) FROM". DB: table ('vgallerys '). "where uid IN (SELECT Pre_home_friend.fuid FROM pre_home_friend WHERE uid = '$ discuz_uid') and album = 0 "); The

Life is a battle for energy.To solve the problem of eating and drinking food and clothing, will ask such questions, the meaning of life is how.In the mood of the sea do not drift, in the fear of death, afraid of shrinking.But these are just appearances.Since the beginning of the pregnancy, the moment has begun, a battle of energy.If people have the original sin, it is from birth to death always from the universe, the Earth to obtain energy, in additio

Summary: no matter how careful we are when writing a program, mistakes are always inevitable. These errors often confuse the PHP compiler. If developers cannot understand the meaning of the compiler error messages, these error messages are not only useless, but often frustrating. When writing a program, no matter how careful we are, making mistakes is always inevitable. These errors often confuse the PHP compiler. If developers cannot understand the

This article transferred from: http://blog.csdn.net/h_o_w_e/article/details/51388500!function () {} (); ! What's the use?From the syntax, the semicolon in JavaScript indicates the end of the statement, and at the beginning, it may be used for compression and other methods to split, indicating a new statement begins. So, if in a separate JS file, the beginning of the semicolon is meaningless, can be deleted.An exclamation point is a logical operator, a "non", a common use of the IF (!true) {}, wh

, rather than providing specific values. For example: Android:textcolor= "? Android:textdisabledcolor" Note that this is very similar to resource references, except that we use a "?" Prefix instead of "@". When you use this tag, you provide the name of the property resource, which will be looked up in the subject, so you do not need to display the declaration of that type (if the declaration is in the form of Android:attr/android:textdisabledcolor). In addition to using the identifier of this re

This article provides a detailed analysis of the meaning of interfaces in php interfaces. For more information, see This article provides a detailed analysis of the meaning of interfaces in php interfaces. For more information, see Everyone may understand this. I guess the meaning of this interface, which is used to call the interface content in the imp

class version issues in the Java serialization mechanismCategory: "Java Basics"2014-10-31 21:13 480 people read reviews (0) favorite reports Directory (?) [+] Original Address: Http://yanwushu.sinaapp.com/java_serialversionuid/Content Introduction Some Java classes that implement the Serializable interface will see a static field named Serialversionuid, which explains the meaning of this field fundamentally.

Ask for the meaning of various regular expression suffixes About the meaning of the expression suffix in PHP, now I am smattering, just know/u table non-greedy match,/I means ignoring case,/s can let "." Match to line break. But do not know what the other suffixes have meaning, so want to ask the system is also looking at this aspect of the predecessors advice.