User`s guide

UNPROTECT
mmm specifies the first three characters of the name of the month.
yy specifies the year (a decimal integer in the range 73–99).
The default value for the date is the current system date. If you omit any of the
date values (dd, mmm, or yy), RT–11 uses the values from the current system date.
For example, if you specify only the year 90 and the current system date is May 4,
1991, RT–11 uses the date 4:MAY:90. If the current date is not set, it is considered
0 (the same as for an undated file in a directory listing).
If you have selected timer support through the system generation process, but have
not selected automatic end-of-month date advancement, make sure that you set the
date at the beginning of each month with the DATE command. If you fail to set the
date at the beginning of each month, the system prints -BAD- in the creation date
column of each file created beyond the end-of-month. (Note that you can eliminate
-BAD- by using the RENAME/SETDATE command after you set the date.)
Options
/BEFORE[:date]
Removes protection from only those files created before the specified date. If
no date is specified, the current system date is used. The following command
removes the protected status of all MAC files on DK created before March 20,
1991:
.UNPROTECT/BEFORE:20:MAR:91 *.MAC
Files unprotected:
DK:A.MAC
DK:B.MAC
DK:C.MAC
/DATE[:date]
Removes protection from only those files with a certain creation date. If no date
is specified, the current system date is used. The following command removes
the protected status of all MAC files on DK created on March 20, 1991:
.UNPROTECT/DATE:20:MAR:91 *.MAC
Files unprotected:
DK:A.MAC
DK:B.MAC
DK:C.MAC
328 RT–11 Command Descriptions