ctime(p1)
public
Returns the change time for the named file (the time at which directory
information about the file was changed, not the file itself).
Note that on Windows (NTFS), returns creation time (birth time).
File.ctime("testfile")
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static VALUE
rb_file_s_ctime(VALUE klass, VALUE fname)
{
struct stat st;
if (rb_stat(fname, &st) < 0) {
FilePathValue(fname);
rb_sys_fail_path(fname);
}
return stat_ctime(&st);
}