vi count matches

VI common command set   Reprinted from: http://blog.chinaunix.net/uid-20769502-id-112737.html   1. Move and redirect: : N jumps to N rows, and N indicates the row number.Ng jumps to N rows. N indicates the row number.CTRL-] Jump to the topic

The list in Python, similar to vertor in C + +, supports random access and can dynamically add or delete data, but the list is more flexible than vector and can hold any type of element, including nested lists. 1. List creation: use [] to denote

Sixth chapter: Managing Database TransactionsA transaction is a DML completed by the fifth data manipulation language, which is an operation or modification to a database lock. All transactions have a start and end Transactions can be

I. Special documents : /dev/null and/dev/ttyThe Linux system provides two special files that are very useful for Shell programming,/dev/null and/dev/tty. Where/dev/null will lose all the data written to it, in other words, when the program writes

Linux File Management Content outline:# Basic concepts of file system and Shell# File and directory operation commands# VI usage# Manage software packagesI. Basic concepts of file system and Shell1. File System DescriptionA file system is a system

The text is primarily a note of study notes when learning the basics of Linux in an experimental building.If you have copyright questions, please contact: 874870841@qq.com Mastering basic commands: sed, grep, awk usageMastering regular expression

Study notes, Source: Experimental building, Link: https://www.shiyanlou.com/courses/9 First, date calculation:1. To determine how big each pet is, you can use the function Timestampdiff () to calculate the difference between the year of the current

Command">" | >> file Standard input redirect (overwrite); (append)2> | 2>> file standard error redirection (overwrite); (append)File &> File = = >file 2>&1 all standard output redirectionTR Convert and delete charactersTee [-A] file1 stdin to file1

========================================================================================*######------Linux Regular Expressions------######*######------Three Musketeers grep text filter------######*/====================================================

Vim Select text, delete, copy, pasteThe selection of text, for the editor, is a very basic thing, also often used, summarized as follows:V starts at the current position of the cursor, where the cursor is selected, and then ends with a click of v.V