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.\" 3. 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.\" 30.Dd June 9, 2016 31.Dt UTIME 3 32.Os 33.Sh NAME 34.Nm utime 35.Nd set file times 36.Sh LIBRARY 37.Lb libc 38.Sh SYNOPSIS 39.In utime.h 40.Ft int 41.Fn utime "const char *file" "const struct utimbuf *timep" 42.Sh DESCRIPTION 43.Bf -symbolic 44This interface is obsoleted by 45.Xr utimensat 2 46because it is not accurate to fractions of a second. 47.Ef 48.Pp 49The 50.Fn utime 51function sets the access and modification times of the named file from 52the 53.Va actime 54and 55.Va modtime 56fields of the 57.Vt "struct utimbuf" 58pointed at by 59.Fa timep . 60.Pp 61If the times are specified (the 62.Fa timep 63argument is 64.Pf non- Dv NULL ) 65the caller must be the owner of the file or be the super-user. 66.Pp 67If the times are not specified (the 68.Fa timep 69argument is 70.Dv NULL ) 71the caller must be the owner of the file, have permission to write 72the file, or be the super-user. 73.Sh ERRORS 74The 75.Fn utime 76function may fail and set 77.Va errno 78for any of the errors specified for the library function 79.Xr utimes 2 . 80.Sh SEE ALSO 81.Xr stat 2 , 82.Xr utimensat 2 , 83.Xr utimes 2 84.Sh STANDARDS 85The 86.Fn utime 87function conforms to 88.St -p1003.1-88 . 89.Sh HISTORY 90A 91.Fn utime 92function appeared in 93.At v7 . 94