adduser/rmuser.8

   1 .\" Copyright 1995, 1996, 1997
   2 .\"     Guy Helmer, Ames, Iowa 50014.  All rights reserved.
   3 .\"
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  13 .\" 3. The name of the author may not be used to endorse or promote products
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  16 .\" THIS SOFTWARE IS PROVIDED BY GUY HELMER ``AS IS'' AND ANY EXPRESS OR
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  26 .\"
  27 .\" $FreeBSD$
  28 .\"
  29 .Dd February 23, 1997
  30 .Dt RMUSER 8
  31 .Os
  32 .Sh NAME
  33 .Nm rmuser
  34 .Nd removes users from the system
  35 .Sh SYNOPSIS
  36 .Nm
  37 .Op Fl y
  38 .Op Ar username
  39 .Sh DESCRIPTION
  40 The utility
  41 .Nm
  42 .Pp
  43 .Bl -enum
  44 .It
  45 Removes the user's
  46 .Xr crontab 1
  47 entry (if any).
  48 .It
  49 Removes any
  50 .Xr at 1
  51 jobs belonging to the user.
  52 .It
  53 Sends a SIGKILL signal to all processes owned by the user.
  54 .It
  55 Removes the user from the system's local password file.
  56 .It
  57 Removes the user's home directory (if it is owned by the user),
  58 including handling of symbolic links in the path to the actual home
  59 directory.
  60 .It
  61 Removes the incoming mail and pop daemon mail files belonging to the
  62 user from
  63 .Pa /var/mail .
  64 .It
  65 Removes all files owned by the user from
  66 .Pa /tmp ,
  67 .Pa /var/tmp ,
  68 and
  69 .Pa /var/tmp/vi.recover .
  70 .It
  71 Removes the username from all groups to which it belongs in
  72 .Pa /etc/group .
  73 (If a group becomes empty and the group name is the same as the username,
  74 the group is removed; this complements
  75 .Xr adduser 8 Ns 's
  76 per-user unique groups).
  77 .El
  78 .Pp
  79 .Nm Rmuser
  80 politely refuses to remove users whose uid is 0 (typically root), since
  81 certain actions (namely, killing all the user's processes, and perhaps
  82 removing the user's home directory) would cause damage to a running system.
  83 If it is necessary to remove a user whose uid is 0, see
  84 .Xr vipw 8
  85 for information on directly editing the password file, by which the desired
  86 user's
  87 .Xr passwd 5
  88 entry may be removed manually.
  89 .Pp
  90 If not running "affirmatively" (i.e., option
  91 .Fl y
  92 is not specified),
  93 .Nm
  94 shows the selected user's password file entry and asks for confirmation
  95 that you wish to remove the user.  If the user's home directory is owned
  96 by the user,
  97 .Nm
  98 asks whether you wish to remove the user's home directory and everything
  99 below.
 100 .Pp
 101 As
 102 .Nm
 103 operates, it informs the user regarding the current activity.  If any
 104 errors occur, they are posted to standard error and, if it is possible for
 105 .Nm
 106 to continue, it will.
 107 .Pp
 108 Available options:
 109 .Pp
 110 .Bl -tag -width username
 111 .It Fl y
 112 Affirm - any question that would be asked is answered implicitly in
 113 the affirmative (i.e., yes).  A username must also be specified on the
 114 command line if this option is used.
 115 .It Ar \&username
 116 Identifies the user to be removed; if not present,
 117 .Nm
 118 interactively asks for the user to be removed.
 119 .El
 120 .Sh FILES
 121 .Bl -tag -width /etc/master.passwd -compact
 122 .It Pa /etc/master.passwd
 123 .It Pa /etc/passwd
 124 .It Pa /etc/group
 125 .It Pa /etc/spwd.db
 126 .It Pa /etc/pwd.db
 127 .El
 128 .Sh SEE ALSO
 129 .Xr at 1 ,
 130 .Xr chpass 1 ,
 131 .Xr crontab 1 ,
 132 .Xr finger 1 ,
 133 .Xr passwd 1 ,
 134 .Xr group 5 ,
 135 .Xr passwd 5 ,
 136 .Xr adduser 8 ,
 137 .Xr pwd_mkdb 8 ,
 138 .Xr vipw 8
 139 .Sh HISTORY
 140 The
 141 .Nm
 142 command appeared in
 143 .Fx 2.2 .
 144 .\" .Sh AUTHOR
 145 .\" Guy Helmer, Ames, Iowa
 146 .Sh BUGS
 147 .Nm Rmuser
 148 does not comprehensively search the filesystem for all files
 149 owned by the removed user and remove them; to do so on a system
 150 of any size is prohibitively slow and I/O intensive.
 151 .Nm Rmuser
 152 also is unable to remove symbolic links that were created by the
 153 user in
 154 .Pa /tmp
 155 or
 156 .Pa /var/tmp
 157 as symbolic links on 4.4BSD filesystems do not contain information
 158 as to who created them.  Also, there may be other files created in
 159 .Pa /var/mail
 160 other than
 161 .Pa /var/mail/username
 162 and
 163 .Pa /var/mail/.pop.username
 164 that are not owned by the removed user but should be removed.
 165 .Pp
 166 .Nm Rmuser
 167 has no knowledge of NIS (Yellow Pages), and it operates only on the
 168 local password file.