Regular expression and text editor of sheI script

catalogue 3, sed tool introduction 1. Sed workflow 2. sed basic syntax 3. Practical application (1) output the specified line (2) insert qualified lines (3) delete qualified lines (4) replace the qualified text (5) transfer qualified text (6) execute multiple commands           (7) edit the file with script ...

Posted on Tue, 21 Sep 2021 19:55:48 -0400 by rajns

SHELL script - text three swordsman

SHELL script - text three swordsman grep Common options optiondescribesupplement-EExtended regular (ERE)–extended–regexp-PBuilt in regularPerl-iignore case–ignore–case-nPrint line number–line–number-oPrint only matching content–only–matching-cPrint only the number of lines that match each file–count-BPrint the first few lines that match–befo ...

Posted on Mon, 20 Sep 2021 20:54:24 -0400 by dapuxter

one-12 regular expressions wrap class IO streams

1. Regular expression Regex String provides methods to support regular expressions Matches: Can the current string match a regular expressionReplceAll: Replace SubstringSplit (regular): split a string k must match the specified character k abc must match the specified character abc [abc] matches only a single character [abc] [123] Combine on ...

Posted on Wed, 15 Sep 2021 13:39:29 -0400 by bakigkgz

Programming Three Swordsmen (grep, sed, awk) in the regular expression of shell

sed editor 1. sed concept sed is a stream editor that edits a stream based on a set of pre-provided rules before the editor processes the data. The sed editor can process data in a data stream based on commands that are either entered from the command line or stored in a command text file. 2. sed's Workflow sed's workflow mainly consist ...

Posted on Tue, 14 Sep 2021 12:09:42 -0400 by varun8211

Advanced JavaScript Chapter 11 (regular expressions) (end)

Understand the role of regular expressions Master the use of regular expressions Create regular expressions Regular expression composition Boundary character Character class Regular test Regular expression overview 1. What is a regular expression Regular Expression is a pattern used to match character combinations in a string. In ...

Posted on Sun, 05 Sep 2021 02:55:54 -0400 by moneytree

The five cores of the Webpack introductory tutorial [entry, output, mode, loader (regular expression), plugin], configuration files, plug-ins, css and pictures in the processing project

Introduction to Webpack (I) five cores [entry, output, mode, loader (regular expression), plugin], configuration file, plug-in, css and pictures in processing project Summary: Introduction + five cores In webpack, everything is a module, and any file can be regarded as a module. js, css and pictures are all modules. loader ...

Posted on Thu, 02 Sep 2021 02:38:12 -0400 by robotman321