file.truncate(integer) â 0
Instance Public methods
Truncates file to at most integer bytes. The file must be opened for writing. Not available on all platforms.
f = File.new("out", "w")
f.syswrite("1234567890") #=> 10
f.truncate(5) #=> 0
f.close() #=> nil
File.size("out") #=> 5
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