1.\" Copyright (c) 1989, 1990, 1993, 1994 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" This code is derived from software contributed to Berkeley by 5.\" the Institute of Electrical and Electronics Engineers, Inc. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. All advertising materials mentioning features or use of this software 16.\" must display the following acknowledgement: 17.\" This product includes software developed by the University of 18.\" California, Berkeley and its contributors. 19.\" 4. Neither the name of the University nor the names of its contributors 20.\" may be used to endorse or promote products derived from this software 21.\" without specific prior written permission. 22.\" 23.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 24.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 27.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 28.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 29.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 30.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 31.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 32.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 33.\" SUCH DAMAGE. 34.\" 35.\" @(#)chflags.1 8.4 (Berkeley) 5/2/95 36.\" $FreeBSD$ 37.\" 38.Dd May 2, 1995 39.Dt CHFLAGS 1 40.Os 41.Sh NAME 42.Nm chflags 43.Nd change file flags 44.Sh SYNOPSIS 45.Nm 46.Oo 47.Fl R 48.Op Fl H | Fl L | Fl P 49.Oc 50.Ar flags 51.Ar 52.Sh DESCRIPTION 53The 54.Nm 55utility modifies the file flags of the listed files 56as specified by the 57.Ar flags 58operand. 59.Pp 60The options are as follows: 61.Bl -tag -width indent 62.It Fl H 63If the 64.Fl R 65option is specified, symbolic links on the command line are followed. 66(Symbolic links encountered in the tree traversal are not followed.) 67.It Fl L 68If the 69.Fl R 70option is specified, all symbolic links are followed. 71.It Fl P 72If the 73.Fl R 74option is specified, no symbolic links are followed. 75.It Fl R 76Change the file flags for the file hierarchies rooted 77in the files instead of just the files themselves. 78.El 79.Pp 80The flags are specified as an octal number or a comma separated list 81of keywords. 82The following keywords are currently defined: 83.Pp 84.Bl -tag -offset indent -width "opaque" -compact 85.It Ar arch 86set the archived flag (super-user only) 87.It Ar opaque 88set the opaque flag (owner or super-user only) 89.It Ar nodump 90set the nodump flag (owner or super-user only) 91.It Ar sappnd 92set the system append-only flag (super-user only) 93.It Ar schg 94set the system immutable flag (super-user only) 95.It Ar sunlnk 96set the system undeletable flag (super-user only) 97.It Ar uappnd 98set the user append-only flag (owner or super-user only) 99.It Ar uchg 100set the user immutable flag (owner or super-user only) 101.It Ar uunlnk 102set the user undeletable flag (owner or super-user only) 103.It Ar archived , sappend , schange , Xo 104.Ar simmutable , uappend , uchange , uimmutable , 105.Ar sunlink , uunlink 106.Xc 107aliases for the above 108.El 109.Pp 110Putting the letters 111.Dq Ar no 112before an option causes the flag to be turned off. 113For example: 114.Bl -tag -offset indent -width "nouchg" 115.It Ar nouchg 116the immutable bit should be cleared 117.El 118.Pp 119Symbolic links do not have flags, so unless the 120.Fl H 121or 122.Fl L 123option is set, 124.Nm 125on a symbolic link always succeeds and has no effect. 126The 127.Fl H , 128.Fl L 129and 130.Fl P 131options are ignored unless the 132.Fl R 133option is specified. 134In addition, these options override each other and the 135command's actions are determined by the last one specified. 136.Pp 137You can use "ls -lo" to see the flags of existing files. 138.Sh DIAGNOSTICS 139The 140.Nm 141utility exits 0 on success, and >0 if an error occurs. 142.Sh SEE ALSO 143.Xr ls 1 , 144.Xr chflags 2 , 145.Xr stat 2 , 146.Xr fts 3 , 147.Xr symlink 7 148.Sh HISTORY 149The 150.Nm 151command first appeared in 152.Bx 4.4 . 153