Ruby - Count text file line

Introduction

The following code adds a variable, text, to collect the lines together:

Demo

text='' 
line_count = 0 #  w  w w  . j a v a2s  .co  m
File.open("main.rb").each do |line|  
  line_count += 1 
  text << line 
end

puts "#{line_count} lines"

Result

Related Topic

• Output text file line by line
• Read whole text file to memory
• Count Text File Characters
• Count characters excluding whitespace
• Counting Words in Text File
• Counting Sentences and Paragraphs in Text file
• Standard Input and Output
• Text Files Reading
• Split file by ,
• Output file byte by type
• Read text file character by character
• Read an I/O stream line by line using gets
• Read entire file into an array, split by lines, using readlines
• Read an arbitrary number of bytes from a file
• Reading text file line by line using each
• Read file in UTF8
• Transcoding from one encoding to another encoding.

• Previous
• Next