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     time - time a command

     time command

     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 com-

     The execution time can depend on what kind of memory the
     program happens to land in; the user time in MOS is often
     half what it is in core.

     The times are printed on the diagnostic output stream.

     Elapsed time is accurate to the second, while the CPU times
     are measured to the 60th second.  Thus the sum of the CPU
     times can be up to a second larger than the elapsed time.