chown/chgrp.1

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  35 .\"     @(#)chgrp.1     8.3 (Berkeley) 3/31/94
  36 .\" $FreeBSD: src/usr.sbin/chown/chgrp.1,v 1.13 2001/08/15 09:09:46 ru Exp $
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  38 .Dd March 31, 1994
  39 .Dt CHGRP 1
  40 .Os
  41 .Sh NAME
  42 .Nm chgrp
  43 .Nd change group
  44 .Sh SYNOPSIS
  45 .Nm chgrp
  46 .Op Fl fhv
  47 .Oo
  48 .Fl R
  49 .Op Fl H | Fl L | Fl P
  50 .Oc
  51 .Ar group
  52 .Ar
  53 .Sh DESCRIPTION
  54 The
  55 .Nm chgrp
  56 utility sets the group ID of the file named by each
  57 .Ar file
  58 operand to the
  59 .Ar group
  60 ID specified by the group operand.
  61 .Pp
  62 The following options are available:
  63 .Bl -tag -width indent
  64 .It Fl f
  65 The force option ignores errors, except for usage errors and doesn't
  66 query about strange modes (unless the user does not have proper permissions).
  67 .It Fl H
  68 If the
  69 .Fl R
  70 option is specified, symbolic links on the command line are followed.
  71 (Symbolic links encountered in the tree traversal are not followed).
  72 .It Fl h
  73 If the file is a symbolic link, the group ID of the link itself is changed
  74 rather than the file that is pointed to.
  75 .It Fl L
  76 If the
  77 .Fl R
  78 option is specified, all symbolic links are followed.
  79 .It Fl P
  80 If the
  81 .Fl R
  82 option is specified, no symbolic links are followed.
  83 This is the default. Use
  84 .Fl h
  85 to change the group ID of a symbolic link.
  86 .It Fl R
  87 Change the group ID for the file hierarchies rooted
  88 in the files instead of just the files themselves.
  89 .It Fl v
  90 Cause
  91 .Nm chgrp
  92 to be verbose, showing files as the group is modified.
  93 .El
  94 .Pp
  95 The
  96 .Fl H ,
  97 .Fl L
  98 and
  99 .Fl P
 100 options are ignored unless the
 101 .Fl R
 102 option is specified.
 103 In addition, these options override each other and the
 104 command's actions are determined by the last one specified.
 105 .Pp
 106 The
 107 .Ar group
 108 operand can be either a group name from the group database,
 109 or a numeric group ID.
 110 If a group name is also a numeric group ID, the operand is used as a
 111 group name.
 112 .Pp
 113 The user invoking
 114 .Nm chgrp
 115 must belong to the specified group and be the owner of the file,
 116 or be the super-user.
 117 .Sh DIAGNOSTICS
 118 .Ex -std
 119 .Sh COMPATIBILITY
 120 In previous versions of this system, symbolic links did not have groups.
 121 .Pp
 122 The
 123 .Fl v
 124 option is non-standard and its use in scripts is not recommended.
 125 .Sh FILES
 126 .Bl -tag -width /etc/group -compact
 127 .It Pa /etc/group
 128 group ID file
 129 .El
 130 .Sh SEE ALSO
 131 .Xr chown 2 ,
 132 .Xr fts 3 ,
 133 .Xr group 5 ,
 134 .Xr passwd 5 ,
 135 .Xr symlink 7 ,
 136 .Xr chown 8
 137 .Sh STANDARDS
 138 The
 139 .Nm chgrp
 140 utility is expected to be
 141 .St -p1003.2
 142 compatible.