1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 4. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)utime.3 8.1 (Berkeley) 6/4/93 29.\" $FreeBSD$ 30.\" 31.Dd June 9, 2016 32.Dt UTIME 3 33.Os 34.Sh NAME 35.Nm utime 36.Nd set file times 37.Sh LIBRARY 38.Lb libc 39.Sh SYNOPSIS 40.In utime.h 41.Ft int 42.Fn utime "const char *file" "const struct utimbuf *timep" 43.Sh DESCRIPTION 44.Bf -symbolic 45This interface is obsoleted by 46.Xr utimensat 2 47because it is not accurate to fractions of a second. 48.Ef 49.Pp 50The 51.Fn utime 52function sets the access and modification times of the named file from 53the 54.Va actime 55and 56.Va modtime 57fields of the 58.Vt "struct utimbuf" 59pointed at by 60.Fa timep . 61.Pp 62If the times are specified (the 63.Fa timep 64argument is 65.Pf non- Dv NULL ) 66the caller must be the owner of the file or be the super-user. 67.Pp 68If the times are not specified (the 69.Fa timep 70argument is 71.Dv NULL ) 72the caller must be the owner of the file, have permission to write 73the file, or be the super-user. 74.Sh ERRORS 75The 76.Fn utime 77function may fail and set 78.Va errno 79for any of the errors specified for the library function 80.Xr utimes 2 . 81.Sh SEE ALSO 82.Xr stat 2 , 83.Xr utimensat 2 , 84.Xr utimes 2 85.Sh STANDARDS 86The 87.Fn utime 88function conforms to 89.St -p1003.1-88 . 90.Sh HISTORY 91A 92.Fn utime 93function appeared in 94.At v7 . 95