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instance method

IO#tty?

ios.tty? → true or false

static VALUE
rb_io_isatty(VALUE io)
{
    rb_io_t *fptr;

    GetOpenFile(io, fptr);
    if (isatty(fptr->fd) == 0)
        return Qfalse;
    return Qtrue;
}

Alias of #isatty

Returns true if ios is associated with a terminal device (tty), false otherwise.

Example

File.new("testfile").isatty   #=> false
File.new("/dev/tty").isatty   #=> true

See also #isatty #to_io #ungetbyte #to_i also in 4.1 · 4.0 · 3.4 · 3.3 · 3.2 · 3.1

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