How to resolve the algorithm Globally replace text in several files step by step in the Julia programming language

Published on 22 June 2024 08:30 PM

How to resolve the algorithm Globally replace text in several files step by step in the Julia programming language

Table of Contents

Problem Statement

Replace every occurring instance of a piece of text in a group of text files with another one.

For this task we want to replace the text   "Goodbye London!"   with   "Hello New York!"   for a list of files.

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Globally replace text in several files step by step in the Julia programming language

This Julia code opens two files (f1.txt and f2.txt) and replaces the string Goodbye London! with Hello New York! in the files.

  • The filenames variable is a list of the two file names.
  • The for loop iterates over the list of file names.
  • For each file name, the read function is used to read the file contents into a string variable txt.
  • The open function is used to open the file for writing. The w argument specifies that the file should be opened for writing. The do block is used to execute the write operation.
  • Inside the do block, the write function is used to write the modified string txt to the file. The replace function is used to replace the string Goodbye London! with Hello New York! in the txt string.
  • After the do block ends, the file is closed.

Source code in the julia programming language

filenames = ["f1.txt", "f2.txt"]
for filename in filenames
   txt = read(filename, String)
   open(filename, "w") do f
      write(f, replace(txt, "Goodbye London!" => "Hello New York!"))
   end
end


  

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