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32 .\" @(#)time.1 8.1 (Berkeley) 6/6/93
33 .\" $FreeBSD: src/usr.bin/time/time.1,v 1.13.2.5 2002/12/29 16:35:40 schweikh Exp $
34 .\" $DragonFly: src/usr.bin/time/time.1,v 1.3 2004/07/16 19:04:57 hmp Exp $
41 .Nd time command execution
47 .Ar utility Op Ar argument ...
59 writes to the standard error stream,
61 the total time elapsed,
62 the time used to execute the
64 process and the time consumed by system overhead.
71 flag is used, append to the specified file rather than overwriting
73 Otherwise, this option has no effect.
75 Print times in a human friendly format.
76 Times are printed in minutes, hours,
81 structure are printed as well.
90 flag is not specified, the file will be overwritten.
94 output POSIX.2 compliant (each time is printed on its own line).
97 Some shells may provide a builtin
99 command which is similar or identical to this utility.
106 could be timed successfully, its exit status is returned.
109 terminated abnormally, a warning message is output to stderr.
112 was found but could not be run, the exit status is 126.
115 could be found at all, the exit status is 127.
118 encounters any other error, the exit status is between 1 and 125
128 utility is expected to conform to ISO/IEC 9945-2:1993 (``POSIX'').