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Summarize the recently learned MVC content according to your own understanding. I hope you can give some advice on the mistakes.   Principle of MVC The process is: URL (the address entered by the user)-> routes (route address processing to find the

A simple statement consists of a (logical) line.1. Expression statementsAn expression can also be a statement. This is especially useful if an expression is a function call or a document string.For example:"This modue contains spam-related function."

Python 2.7.5 (default, May, 22:43:36) [MSC v.1500 + bit (Intel)] on Win32#chapter 5 conditions, loops and other statements #5.1 print and import A lot of other information # for very many applications, using the logging module to log logs is more

I. AWK descriptionAwk is a programming language that is used to process text and data under Linux/unix. Data can come from standard input, one or more files, or the output of other commands. It supports advanced functions such as user-defined

Five scenarios for grep to search for strings Search for a specific string Use [] to search for characters. ^ in the character set symbol ([]) represents the inverse selection, which stands outside [] to locate at the beginning of the

Awk is a powerful text analysis tool that reads the file line-by-row, using spaces as the default delimiter to slice each row, and then perform various analytical processing of the cut.awk command form:awk [-F |-f |-v] ' begin{}//{command1;command2;

1. View TCP connection Statusnetstat -nat |awk ‘{print $6}‘|sort|uniq -c|sort -rn netstat -n | awk ‘/^tcp/ {++S[$NF]};END {for(a in S) print a, S[a]}‘netstat -n | awk ‘/^tcp/ {++state[$NF]}; END {for(key in state) print key,"\t",state[key]}‘netstat -

A Basic introduction1.awk:Awk is a powerful text analysis tool that is irreplaceable in the processing of text files and generating reports. Awk considers text files to be structured, which defines each input row as a single record, each string in

is a set of cabinets and methods for handling strings, which are handled in the unit of behaviorWith the aid of special symbols, you can quickly filter and replace certain specific strings.awk sed grep^word has word startwrod$ has word end# grep "^i"

Cut is a selection command that analyzes a piece of data and takes out what we want. In general, the selection of information is usually for "line" for analysis, not the entire information analysisCut [-bn] [file] or cut [-c] [file] or cut [-DF]

The results of the free command are as follows:i2000:~ # free total used free shared buffers cachedmem: 24157516 23714828 442688 7100040 881324 18425668-/+ buffers/cache: 4407836 19749680Swap: 12583

Suppose you have a file that looks like this:Chrom POS ID REF ALT QUAL FILTER INFO FORMAT samplename1 3552841. G. 32.995. Dp=1; mq0f=0; af1=0; ac1=0;dp4=1,0,0,0; mq=40; fq=-29.9912 GT:PL:DP 0/0:0:11 3552842. T. 32.995. Dp=1; mq0f=0; af1=0; ac1=0;dp4=

Ubuntu Common Commands EncyclopediaView Software XXX Installation content#dpkg-L XXXFind software#apt-cache Search Regular ExpressionsFind out which package the file belongs to#dpkg-s filename apt-file search filenameQuery software xxx depends on

1. For loop(1) Requirements: Can read, can change. Does not require to be able to write out completely without reference. Because embedded does not need to completely re-handwriting the shell, system administrator (server OPS, Application layer

1. View TCP connection StatusNetstat-nat |awk ' {print $6} ' |sort|uniq-c|sort-rnNetstat-n | awk '/^tcp/{++s[$NF]}; END {for (a in S) print A, s[a]} 'Netstat-n | awk '/^tcp/{++state[$NF]}; END {for (key in) print key, "T", State[key]} 'Netstat-n |

Python built-in functionsView Python's built-in functions>>> dir (__builtins__) [' Arithmeticerror ', ' assertionerror ', ' attributeerror ', ' baseexception ', ' Blockingioerror ', ' brokenpipeerror ', ' buffererror ', ' byteswarning ', '

October 01, 2014 PHP development 1 reviews read 264 times Datetime::format is designed to be unaffected by external settings (object oriented)So no matter how you change the environment parameter date_default_timezone, it will not affect the

First, Python introductionPython is an object-oriented, interpreted computer programming language, invented by Dutchman Guido van Rossum in 1989, and the first public release was released in 1991.Description of the compiled and interpreted languages:

Document descriptionThe shell script is designed to provide a relatively automated solution for the patrol of a large number of Linux servers. The script consists of three parts: shellsh.sh, checksh.sh, file.txt; these three files need to be placed

1.linux How to hang a shared directory under Windows Mount.cifs//192.168.1.3/server/mnt/server-o user=administrator,pass=123456 Linux server needs to manually build a later user and pass is the Windows Host account and password note