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A complete list of vi and vim commands in Linux

vi is a very common text editor under unix/linux. There are various variants of vi, and there are different variant software on different machines. Among them, vim is easier to use and more widely used. vim is the abbreviation of Vi IMproved. Represents better vi. This article will talk about some of the more useful and commonly used commands.

Dec 12, 2016 pm 04:26 PM

A complete list of vi commands under linux

Enter the vi command vi filename: open or create a file, and place the cursor at the beginning of the first line. vi +n filename: open the file, and place the cursor at the beginning of the nth line. vi + filename: open the file, and place the cursor at the beginning of the nth line. vi +/pattern filename at the beginning of the last line: open the file and place the cursor at the first string matching pattern vi -r filename: the system crashed when editing with vi last time, restore filename vi filename... .filename: Open multiple files and edit them in sequence

Dec 12, 2016 pm 04:24 PM

Detailed introduction and examples of awk command and awk programming language

Dec 12, 2016 pm 04:22 PM

awk command

Detailed explanation of linux awk command

Awk is a line processor: Compared with the advantages of screen processing, there will be no memory overflow or slow processing problems when processing huge files. It is usually used to format text information. Awk processing process: Process each line in turn and then output

Dec 12, 2016 pm 04:14 PM

Detailed explanation of awk command

Detailed explanation of awk command Simple use: awk: perform operations on each line of the file. awk -F: '{print $1,$4}': Use ':' to split this line and print out the first and fourth fields of this line. Detailed introduction:

Dec 12, 2016 pm 04:12 PM

awk command

AWK command usage

The most basic function of awk is to browse and extract information based on specified rules in a file or string. It is used to divide a line into several "fields" for processing. Suitable for processing small data.

Dec 12, 2016 pm 04:02 PM

awk command

Linux awk command

AWK is a language for processing text files and a powerful text analysis tool. The reason why it is called AWK is because it takes the first characters of the family names of its three founders, Alfred Aho, Peter Weinberger, and Brian Kernighan.

Dec 12, 2016 pm 03:55 PM

A simple way to match URLs with regular expressions in php

Simple way to match URLs using regular expressions, test code provided

Dec 12, 2016 pm 03:54 PM

Commonly used functions for PHP regular expressions

Friends who learn PHP regular expressions have to know some functions. After reading the following article, you will know how to call regular expressions in PHP.

Dec 12, 2016 pm 03:51 PM

php regular

Detailed explanation of linux awk command

Awk is a powerful text analysis tool. Compared with grep search and sed editing, awk is particularly powerful when it analyzes data and generates reports. To put it simply, awk reads the file line by line, slices each line using spaces as the default delimiter, and then performs various analysis and processing on the cut parts. There are 3 different versions of awk: awk, nawk and gawk. Without special explanation, it generally refers to gawk. Gawk is the GNU version of AWK. Awk's name comes from the first letters of the surnames of its founders, Alfred Aho, Peter Weinberger and Brian Kernighan. Actually AWK's

Dec 12, 2016 pm 03:43 PM

awk command

In-depth understanding of HTTP protocol and principle analysis of HTTPS

Dec 12, 2016 am 11:30 AM

In-depth understanding of HTTP protocol and principle analysis of caching

In-depth understanding of HTTP protocol and principle analysis of cache. The cache will save a copy of the output content according to the request, such as html page, picture, file. When the next request comes: if it is the same URL, the cache will directly use the copy to respond to the access request. Instead of sending the request again to the origin server.

Dec 12, 2016 am 11:26 AM

http protocol

Deep understanding of HTTP protocol

HTTP is the abbreviation of Hyper Text Transfer Protocol. Its development is the result of cooperation between the World Wide Web Consortium and the Internet Engineering Task Force (IETF), which eventually released a series of RFCs. RFC 1945 defines the HTTP/1.0 version. The most famous of these is RFC 2616. RFC 2616 defines a version commonly used today - HTTP 1.1. HTTP protocol (HyperText TR

Dec 12, 2016 am 11:14 AM

http protocol

Detailed explanation of HTTP protocol (really classic)

HTTP is an object-oriented protocol belonging to the application layer. Due to its simple and fast method, it is suitable for distributed hypermedia information systems. It was proposed in 1990 and has been continuously improved and expanded after several years of use and development. The sixth version of HTTP/1.0 is currently used in the WWW. The standardization work of HTTP/1.1 is in progress, and the HTTP-NG (Next Generation of HTTP) proposal has been put forward.

Dec 12, 2016 am 11:08 AM

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