1.\" $NetBSD: chflags.1,v 1.21 2010/05/14 16:48:02 joerg Exp $ 2.\" 3.\" Copyright (c) 1989, 1990, 1993, 1994 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. Neither the name of the University nor the names of its contributors 18.\" may be used to endorse or promote products derived from this software 19.\" without specific prior written permission. 20.\" 21.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 22.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 25.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 27.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 29.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 30.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 31.\" SUCH DAMAGE. 32.\" 33.\" @(#)chflags.1 8.4 (Berkeley) 5/2/95 34.\" 35.Dd May 14, 2010 36.Dt CHFLAGS 1 37.Os 38.Sh NAME 39.Nm chflags 40.Nd change file flags 41.Sh SYNOPSIS 42.Nm 43.Oo 44.Fl R 45.Op Fl H | Fl L | Fl P 46.Oc 47.Op Fl h 48.Ar flags 49.Ar 50.Sh DESCRIPTION 51The 52.Nm 53utility modifies the file flags of the listed files 54as specified by the 55.Ar flags 56operand. 57.Pp 58The options are as follows: 59.Bl -tag -width Ds 60.It Fl H 61If the 62.Fl R 63option is specified, symbolic links on the command line are followed. 64(Symbolic links encountered in the tree traversal are not followed.) 65.It Fl L 66If the 67.Fl R 68option is specified, all symbolic links are followed. 69.It Fl P 70If the 71.Fl R 72option is specified, no symbolic links are followed. 73.It Fl R 74Change the file flags for the file hierarchies rooted 75in the 76.Ar files 77instead of just the 78.Ar files 79themselves. 80.It Fl h 81If the 82.Ar file 83or a file encountered during directory traversal is a symbolic link, 84the file flags of the link itself is changed. 85.El 86.Pp 87Flags are a comma separated list of keywords. 88The following keywords are currently defined: 89.Bl -column -offset indent "Keyword " "system append-only" "Permission" 90.It Sy Keyword Ta Sy Flag Ta Sy Permission 91.It Em arch Ta archived Ta super-user only 92.It Em opaque Ta opaque Ta owner or super-user 93.It Em nodump Ta nodump Ta owner or super-user 94.It Em sappnd Ta system append-only Ta super-user only 95.It Em schg Ta system immutable Ta super-user only 96.It Em uappnd Ta user append-only Ta owner or super-user 97.It Em uchg Ta user immutable Ta owner or super-user 98.El 99.Pp 100Putting the letters 101.Dq no 102before an option causes the flag to be turned off. 103For example: 104.Pp 105.Bl -tag -offset indent -width ".Em nouchg" 106.It Em nouchg 107the immutable bit should be cleared 108.El 109.Pp 110The 111.Fl H , 112.Fl L 113and 114.Fl P 115options are ignored unless the 116.Fl R 117option is specified. 118In addition, these options override each other and the 119command's actions are determined by the last one specified. 120.Pp 121The 122.Fl o 123option 124of 125.Xr ls 1 126is used to display the flags. 127.Pp 128The 129.Nm 130utility exits 0 on success, and \*[Gt]0 if an error occurs. 131.Pp 132The kernel does not allow the flags on block and character 133devices to be changed except by the super-user. 134.Sh SEE ALSO 135.Xr ls 1 , 136.Xr chflags 2 , 137.Xr lchflags 2 , 138.Xr stat 2 , 139.Xr fts 3 , 140.Xr symlink 7 , 141.Xr dump 8 , 142.Xr init 8 143