RUBY

ruby get line from a file

# open the file
File.open('foo.txt') do |file|
  # iterate over each line with its index
  file.each_line.with_index(1) do |line, number|
    puts "#{number}: #{line}"
  end
end
# since we passed a block, the file is automatically closed after `end`

ruby get line from a file

# open the file
File.open('foo.txt') do |file|
  # iterate over each line
  file.each_line do |line|
    puts line
  end
end
# since we passed a block, the file is automatically closed after `end`

ruby file get line number

## Like in PHP
## To get line number
__LINE__

## To get file name
__FILE__

ruby get line from a file

# open the file
file = File.open('foo.txt')

# iterate over each line
file.each_line do |line|
  puts line
end

# close the file afterwards
file.close