xref: /freebsd/usr.sbin/adduser/rmuser.8 (revision 9207b4cff7b8d483f4dd3c62266c2b58819eb7f9)
1.\" Copyright 1995, 1996, 1997
2.\"     Guy Helmer, Ames, Iowa 50014.  All rights reserved.
3.\"
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5.\" modification, are permitted provided that the following conditions
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16.\" THIS SOFTWARE IS PROVIDED BY GUY HELMER ``AS IS'' AND ANY EXPRESS OR
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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
40The utility
41.Nm
42.Pp
43.Bl -enum
44.It
45Removes the user's
46.Xr crontab 1
47entry (if any).
48.It
49Removes any
50.Xr at 1
51jobs belonging to the user.
52.It
53Sends a SIGKILL signal to all processes owned by the user.
54.It
55Removes the user from the system's local password file.
56.It
57Removes the user's home directory (if it is owned by the user),
58including handling of symbolic links in the path to the actual home
59directory.
60.It
61Removes the incoming mail and pop daemon mail files belonging to the
62user from
63.Pa /var/mail .
64.It
65Removes all files owned by the user from
66.Pa /tmp ,
67.Pa /var/tmp ,
68and
69.Pa /var/tmp/vi.recover .
70.It
71Removes 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,
74the group is removed; this complements
75.Xr adduser 8 Ns 's
76per-user unique groups).
77.El
78.Pp
79.Nm Rmuser
80politely refuses to remove users whose uid is 0 (typically root), since
81certain actions (namely, killing all the user's processes, and perhaps
82removing the user's home directory) would cause damage to a running system.
83If it is necessary to remove a user whose uid is 0, see
84.Xr vipw 8
85for information on directly editing the password file, by which the desired
86user's
87.Xr passwd 5
88entry may be removed manually.
89.Pp
90If not running "affirmatively" (i.e., option
91.Fl y
92is not specified),
93.Nm
94shows the selected user's password file entry and asks for confirmation
95that you wish to remove the user.  If the user's home directory is owned
96by the user,
97.Nm
98asks whether you wish to remove the user's home directory and everything
99below.
100.Pp
101As
102.Nm
103operates, it informs the user regarding the current activity.  If any
104errors occur, they are posted to standard error and, if it is possible for
105.Nm
106to continue, it will.
107.Pp
108Available options:
109.Pp
110.Bl -tag -width username
111.It Fl y
112Affirm - any question that would be asked is answered implicitly in
113the affirmative (i.e., yes).  A username must also be specified on the
114command line if this option is used.
115.It Ar \&username
116Identifies the user to be removed; if not present,
117.Nm
118interactively 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
140The
141.Nm
142command appeared in
143.Fx 2.2 .
144.\" .Sh AUTHOR
145.\" Guy Helmer, Ames, Iowa
146.Sh BUGS
147.Nm Rmuser
148does not comprehensively search the filesystem for all files
149owned by the removed user and remove them; to do so on a system
150of any size is prohibitively slow and I/O intensive.
151.Nm Rmuser
152also is unable to remove symbolic links that were created by the
153user in
154.Pa /tmp
155or
156.Pa /var/tmp
157as symbolic links on
158.Bx 4.4
159filesystems do not contain information
160as to who created them.  Also, there may be other files created in
161.Pa /var/mail
162other than
163.Pa /var/mail/username
164and
165.Pa /var/mail/.pop.username
166that are not owned by the removed user but should be removed.
167.Pp
168.Nm Rmuser
169has no knowledge of NIS (Yellow Pages), and it operates only on the
170local password file.
171