SYNOPSIS

       time [-p] command
       ptime [-p] command

DESCRIPTION

       The  given  command  is executed; after it is complete, time prints the
       elapsed time during the command, the time spent in the system, and  the
       time spent in execution of the command.  Times are reported in seconds.

       The times are printed on the diagnostic output stream.

       Ptime performs a similar task using the /proc file system, but does not
       include the time values of child processes of command.

       Both time and ptime accept the following option:

       -p     Use the portable output format, as in:

              real (real seconds)
              user (user seconds)
              sys (system seconds)

       If  the specified command could not get found, time and ptime exit with
       a status of 127.  If the command was found, but could not get executed,
       the exit status is 126.

ENVIRONMENT VARIABLES

       LANG, LC_ALL
              See locale(7).

       LC_NUMERIC
              Sets the format of numbers printed with the -p option.

       PATH   Used to find the location of command.

SEE ALSO

       sh(1), times(2), proc(5)

NOTES

       Ptime prints values in milliseconds, but the practical accuracy depends
       on the system clock.



Heirloom Toolchest                  3/10/03                            TIME(1)