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a298f5eb5e
This method is an ActiveSupport extension, but there's no harm in recognising it universally as any identically-named method is likely to also be a file writer.
51 lines
1.1 KiB
Ruby
51 lines
1.1 KiB
Ruby
# `foo_file` is a `File` instance
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foo_file = File.new("foo.txt", "a+")
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foo_file_2 = foo_file
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foo_file
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# File read access
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foo_lines = foo_file_2.readlines
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# `fp` is a file path
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fp = foo_file.path
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fp = foo_file.to_path
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# `FileUtils.makedirs` returns an array of file names
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dirs = FileUtils.makedirs(["dir1", "dir2"])
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# `rand` is an `IO` instance
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rand = IO.new(IO.sysopen("/dev/random", "r"), "r")
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rand_2 = rand
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rand_data = rand.read(32)
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# `foo_file_kernel` is a `File` instance
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foo_file_kernel = open("foo.txt")
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foo_file_kernel = Kernel.open("foo.txt")
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foo_command_kernel = open("|ls")
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# `IO.read("foo.txt")` reads from a file
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foo_text = IO.read("foo.txt")
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# `IO.read("|date")` does not read from a file
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date = IO.read("|date")
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# `rand_open` is an `IO` instance
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rand_open = IO.open(IO.sysopen("/dev/random", "r"), "r")
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foo_file_3 = File.open("foo.txt")
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# File write accesses
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foo_file.puts("hello")
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File.open("foo.txt", "a+").write("world\n")
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# IO instance
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io_file = IO.open(IO.sysopen("foo.txt", "w"))
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str_1 = "hello"
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int_1 = 123
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# File/IO write
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io_file.printf("%s: %d\n", str_1, int_1)
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File.write("foo.txt", "hello")
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File.atomic_write("foo.txt", "hello")
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