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\"      @(#)chflags.1   8.4 (Berkeley) 5/2/95
\"
Dd May 25, 2023
Dt CHFLAGS 1
Os
Sh NAME
Nm chflags
Nd change file flags
Sh SYNOPSIS
Nm
Oo
Fl R
Op Fl H | Fl L | Fl P
Oc
Op Fl d
Op Fl h
Ar flags
Ar
Sh DESCRIPTION
The
Nm
utility modifies the file flags of the listed files
as specified by the
Ar flags
operand.
Pp
The options are as follows:
Bl -tag -width Fl
It Fl d
If the change requested would not alter the
flags currently set for
Ar file
then attempt no change operation.
It Fl H
If the
Fl R
option is specified, symbolic links on the command line are followed.
Symbolic links encountered in the tree traversal are not followed.
It Fl h
If the
Ar file
or a file encountered during directory traversal is a symbolic link,
the file flags of the link itself are changed.
It Fl L
If the
Fl R
option is specified, all symbolic links are followed.
It Fl P
If the
Fl R
option is specified, no symbolic links are followed.
It Fl R
Change the file flags for the file hierarchies rooted
in the
Ar file\^ Ns s
instead of just the
Ar file\^ Ns s
themselves.
El
Pp
Flags are a comma separated list of keywords.
The following keywords are currently defined:
\" XXX: list the actual chflags(2) macro names
Bl -column -offset indent ".Sy Keyword" "system append-only"
It Sy Keyword Ta Sy Flag Ta Sy Permission
It Li arch Ta archived Ta super-user only
It Li opaque Ta opaque Ta owner or super-user
It Li nodump Ta nodump Ta owner or super-user
It Li sappnd Ta system append-only Ta super-user only
It Li schg Ta system immutable Ta super-user only
It Li uappnd Ta user append-only Ta owner or super-user
It Li uchg Ta user immutable Ta owner or super-user
El
Pp
Putting the letters
Sq Cm no
before a keyword causes the flag to be turned off.
For example,
Li nouchg
requests the immutable bit should be cleared.
Pp
The
Fl H ,
Fl L
and
Fl P
options are ignored unless the
Fl R
option is specified.
In addition, these options override each other and the
command's actions are determined by the last one specified.
The default is as if the
Fl P
option had been specified.
Pp
The
Fl o
option
of
Xr ls 1
is used to display the flags.
Pp
The kernel does not allow the flags on block and character
devices to be changed except by the super-user.
Pp
Note that the ability to clear certain flags is
dependent on the current kernel
Va securelevel .
See
Xr secmodel_securelevel 9
for details.
Sh EXIT STATUS
Ex -std
Sh SEE ALSO
Xr ls 1 ,
Xr chflags 2 ,
Xr lchflags 2 ,
Xr stat 2 ,
Xr fts 3 ,
Xr stat_flags 3 ,
Xr symlink 7 ,
Xr dump 8 ,
Xr init 8 ,
Xr secmodel_securelevel 9

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