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class method

FileUtils.compare_file

(::FileUtils::path a, ::FileUtils::path b) -> bool

compare_file(a, b)

# File tmp/rubies/ruby-4.1.0-preview1/lib/fileutils.rb, line 1534
def compare_file(a, b)
  return false unless File.size(a) == File.size(b)
  File.open(a, 'rb') {|fa|
    File.open(b, 'rb') {|fb|
      return compare_stream(fa, fb)
    }
  }
end

Returns true if the contents of files a and b are identical, false otherwise.

Arguments a and b should be interpretable as a path.

FileUtils.identical? and FileUtils.cmp are aliases for FileUtils.compare_file.

Related: FileUtils.compare_stream.

See also #compare_file .commands .compare_stream .collect_method also in 4.0 · 3.4 · 3.3 · 3.2 · 3.1 · 3.0

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