The obsolescent form of
touch, where a time format is specified as the first argument, is supported. When no
-r or
-t option is specified, there are at least two arguments, and the first argument is a string of digits either eight or ten characters in length, the first argument is interpreted as a time specification of the form “MMDDhhmm[YY]”.
The “MM”, “DD”, “hh” and “mm” letter pairs are treated as their counterparts specified to the
-t option. If the “YY” letter pair is in the range 69 to 99, the year is set to 1969 to 1999, otherwise, the year is set in the 21st century.