CODEWITHSUNDEEP
ruby
Julie Rain
Julie Rain

Reputation: 61

Append text behind a certain keyword in filename

In directory C:\Users\Scripts, I have files named:

2A_Apple_VC_20180101.txt
2A_Apple_VC_20180201.txt
2A_Apple_VC_20180301.txt
etc.

How can I insert the phrase Vendor right after 2A_ for all the filenames in that directory that starts with 2A_, permanently changing the filenames to:

2A_Vendor_Apple_VC_20180101.txt
2A_Vendor_Apple_VC_20180201.txt
2A_Vendor_Apple_VC_20180301.txt

Upvotes: 2

Views: 62

Answers (3)

Julie Rain
Julie Rain

Reputation: 61

Reworked version using Max's response:

#!/usr/bin/env ruby

require 'rubygems'

paths = Dir.glob("C:\Users\Scripts/*.txt")
paths.each do |path|
  puts "File #{path}"
  if path =~ /2A_/
    puts "Find 2A"
    new_path = path.sub(/2A_/, "2A_Vendor_")
    puts "New file: #{new_path}"
    File.rename path, new_path
  end
end

Upvotes: 1

max pleaner
max pleaner

Reputation: 26768

You can get a list of the file paths in the directory with Dir.glob:

paths = Dir.glob("C:\Users\Scripts/*.txt")

Then rename using String#sub and FileUtils.mv or File.rename:

paths.each do |path|
  if path =~ /^2A_/
    new_path = path.sub /^2A_/, "2A_Vendor_"
    File.rename path, new_path
  end
end

Upvotes: 1

Yurii Verbytskyi
Yurii Verbytskyi

Reputation: 2052

You can try File#rename

Dir["2A_*.txt"].each do |f|
  File.rename(f, f.sub('2A_', '2A_Vendor_'))
end

Or with path

path = 'your_path_here'
Dir.glob("#{path}/2A_*.txt").each do |f|
  File.rename(f, f.sub('2A_', '2A_Vendor_'))
end

For Windows you probably need to do with backslashes this this

Upvotes: 1

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