How to Get Files Count in a Directory Using Ruby

how to get files count in a directory using ruby

The fastest way should be (not including directories in count):

Dir.glob(File.join(your_directory_as_variable_or_string, '**', '*')).select { |file| File.file?(file) }.count

And shorter:

dir = '~/Documents'
Dir[File.join(dir, '**', '*')].count { |file| File.file?(file) }

Chef: Count the number of files in a folder

count seems to be 0 (Fixnum).

You may wanna try:

file 'C:\Users\Desktop\Chef-file\count.txt' do
  dir = 'C:\Users\Desktop\Chef-Commands'
  count = Dir[File.join(dir, '**', '*')].count { |file| File.file?(file)}
  content count.to_s
end

How to get the total size of files in a Directory in Ruby

In Windows, You can use win32ole gem to calculate the same

 require 'win32ole'

 fso = WIN32OLE.new('Scripting.FileSystemObject')

 folder = fso.GetFolder('directory path')

  p folder.name

  p folder.size

 p folder.path

Get names of all files from a folder with Ruby

You also have the shortcut option of

Dir["/path/to/search/*"]

and if you want to find all Ruby files in any folder or sub-folder:

Dir["/path/to/search/**/*.rb"]

Count the number of lines in a file without reading entire file into memory?

If you are in a Unix environment, you can just let wc -l do the work.

It will not load the whole file into memory; since it is optimized for streaming file and count word/line the performance is good enough rather then streaming the file yourself in Ruby.

SSCCE:

filename = 'a_file/somewhere.txt'
line_count = `wc -l "#{filename}"`.strip.split(' ')[0].to_i
p line_count

Or if you want a collection of files passed on the command line:

wc_output = `wc -l "#{ARGV.join('" "')}"`
line_count = wc_output.match(/^ *([0-9]+) +total$/).captures[0].to_i
p line_count

How do I get all the files names in one folder using Ruby?

Break the problem into into parts. The method get_first_part should go something like:

1. Use Dir to get a listing of files.

2. Iterate over each file and;

   1. Extract the "name" ('This_is_a_very_good_movie') and the "tag" ('y08iPnx_ktA'). The same regex should be used for each file.

   2. If the "tag" matches what is being looked for, return "name".

Happy coding.

---

Play around in the REPL and have fun :-)

Get all file names in a directory with ruby

Dir.new('.').each {|file| puts file }

Note that this will include . and ..

---

Related Topics