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Maintenance Ruby 3.3 gets fixes, but no new features. Switch to Ruby 4.0 →

instance method

File::Stat#size

stat.size → integer

Returns the size of stat in bytes.

Example
File.stat("testfile").size   #=> 66
See also #size? #setuid? #setgid? #socket? also in 4.1 · 4.0 · 3.4 · 3.2 · 3.1 · 3.0