[Lua] File I/O

Using Explicit File Descriptor

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file = io.open("sample.txt", "r") print(file:read()) file:close()   file = io.open("sample.txt", "a") file:write("Hello world") file:close()

Using Implicit File Descriptor

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file = io.open("sample.txt", "r") io.input(file) print(io.read()) io.close(file)   file = io.open("sample.txt", "a") io.output(file) io.write("Hello world") io.close(file)

References

1. https://www.tutorialspoint.com/lua/lua_file_io.htm
2. https://www.lua.org/pil/21.2.html