End of Life Ruby 3.1 has reached end of life and gets no more fixes. Switch to Ruby 4.0 →
instance method
Pathname#chmod
pathname.chmod(mode_int) → integer
ext/pathname/pathname.c
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static VALUE
path_chmod(VALUE self, VALUE mode)
{
return rb_funcall(rb_cFile, id_chmod, 2, mode, get_strpath(self));
}
Changes file permissions.
See File.chmod.