.\" $NetBSD: time.1,v 1.7 1997/10/20 03:28:20 lukem Exp $ .\" .\" Copyright (c) 1980, 1991, 1993 .\" The Regents of the University of California. All rights reserved. .\" .\" Redistribution and use in source and binary forms, with or without .\" modification, are permitted provided that the following conditions .\" are met: .\" 1. Redistributions of source code must retain the above copyright .\" notice, this list of conditions and the following disclaimer. .\" 2. Redistributions in binary form must reproduce the above copyright .\" notice, this list of conditions and the following disclaimer in the .\" documentation and/or other materials provided with the distribution. .\" 3. All advertising materials mentioning features or use of this software .\" must display the following acknowledgement: .\" This product includes software developed by the University of .\" California, Berkeley and its contributors. .\" 4. Neither the name of the University nor the names of its contributors .\" may be used to endorse or promote products derived from this software .\" without specific prior written permission. .\" .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE .\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF .\" SUCH DAMAGE. .\" .\" @(#)time.1 8.1 (Berkeley) 6/6/93 .\" .Dd June 6, 1993 .Dt TIME 1 .Os .Sh NAME .Nm time .Nd time command execution .Sh SYNOPSIS .Nm .Op Fl lp .Ar utility .Sh DESCRIPTION The .Nm utility executes and times .Ar utility . After the .Ar utility finishes, .Nm writes the total time elapsed, the time consumed by system overhead, and the time used to execute .Ar utility to the standard error stream. Times are reported in seconds. .Pp Available options: .Bl -tag -width Ds .It Fl l The contents of the .Em rusage structure are printed. .It Fl p The output is formatted as specified by .St -p1003.2-92 . .El .Pp The .Xr csh 1 has its own and syntactically different builtin version of .Nm . The utility described here is available as .Pa /usr/bin/time to .Xr csh users. .Sh DIAGNOSTICS The .Nm utility shall exit with one of the following values: .Bl -tag -width indent .It 1-125 An error occurred in the .Nm utility. .It 126 The .Ar utility was found but could not be invoked. .It 127 The .Ar utility could not be found. .El .Pp Otherwise, the exit status of .Nm shall be that of .Ar utility . .Sh SEE ALSO .Xr csh 1 , .Xr getrusage 2 .Sh FILES .Bl -tag -width /usr/include/sys/resource.h -compact .It Pa /usr/include/sys/resource.h .El .Sh STANDARDS The .Nm utility conforms to .St -p1003.2-92 . .Sh BUGS The granularity of seconds on microprocessors is crude and can result in times being reported for CPU usage which are too large by a second.