отображать дату смещения  (display an offset date)
  
Имя (Name)
pmdate - display an offset date
Синопсис (Synopsis)
pmdate [offset ...]  format
Описание (Description)
pmdate displays the current date and/or time, with an optional
       offset.
       An offset is specified with a leading sign (``+'' or ``-''),
       followed by an integer value, followed by one of the following
       ``scale'' specifiers;
       S      seconds
       M      minutes
       H      hours
       d      days
       m      months
       y      years
       The output format follows the same rules as for date(1) and
       strftime(3).
       For example, the following will display the date a week ago as
       DDMMYYYY;
               pmdate -7d %d%m%Y
Окружение PCP (PCP environment)
Environment variables with the prefix PCP_ are used to
       parameterize the file and directory names used by PCP.  On each
       installation, the file /etc/pcp.conf contains the local values
       for these variables.  The $PCP_CONF variable may be used to
       specify an alternative configuration file, as described in
       pcp.conf(5).
Смотри также (See also)
date(1), strftime(3), pcp.conf(5) and pcp.env(5).