adv_cmds/finger/finger.1

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  32 .\"     @(#)finger.1    8.3 (Berkeley) 5/5/94
  33 .\" $FreeBSD: src/usr.bin/finger/finger.1,v 1.31 2005/09/19 10:11:46 dds Exp $
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  35 .Dd July 17, 2004
  36 .Dt FINGER 1
  37 .Os
  38 .Sh NAME
  39 .Nm finger
  40 .Nd user information lookup program
  41 .Sh SYNOPSIS
  42 .Nm
  43 .Op Fl 46gklmpsho
  44 .Op Ar user ...\&
  45 .Op Ar user@host ...\&
  46 .Sh DESCRIPTION
  47 The
  48 .Nm
  49 utility displays information about the system users.
  50 .Pp
  51 Options are:
  52 .Bl -tag -width indent
  53 .It Fl 4
  54 Forces
  55 .Nm
  56 to use IPv4 addresses only.
  57 .It Fl 6
  58 Forces
  59 .Nm
  60 to use IPv6 addresses only.
  61 .It Fl g
  62 This option restricts the gecos output to only the users' real
  63 name.
  64 It also has the side-effect of restricting the output
  65 of the remote host when used in conjunction with the
  66 .Fl h
  67 option.
  68 .It Fl h
  69 When used in conjunction with the
  70 .Fl s
  71 option, the name of the remote host is displayed instead of the office
  72 location and office phone.
  73 .It Fl k
  74 Disable all use of
  75 .Xr utmpx 5 .
  76 .It Fl l
  77 Produce a multi-line format displaying all of the information
  78 described for the
  79 .Fl s
  80 option as well as the user's home directory, home phone number, login
  81 shell, mail status, and the contents of the files
  82 .Pa .forward ,
  83 .Pa .plan ,
  84 .Pa .project
  85 and
  86 .Pa .pubkey
  87 from the user's home directory.
  88 .Pp
  89 If idle time is at least a minute and less than a day, it is
  90 presented in the form ``hh:mm''.
  91 Idle times greater than a day are presented as ``d day[s]hh:mm''.
  92 .Pp
  93 Phone numbers specified as eleven digits are printed as ``+N-NNN-NNN-NNNN''.
  94 Numbers specified as ten or seven digits are printed as the appropriate
  95 subset of that string.
  96 Numbers specified as five digits are printed as ``xN-NNNN''.
  97 Numbers specified as four digits are printed as ``xNNNN''.
  98 .Pp
  99 If write permission is denied to the device, the phrase ``(messages off)''
 100 is appended to the line containing the device name.
 101 One entry per user is displayed with the
 102 .Fl l
 103 option; if a user is logged on multiple times, terminal information
 104 is repeated once per login.
 105 .Pp
 106 Mail status is shown as ``No Mail.'' if there is no mail at all, ``Mail
 107 last read DDD MMM ## HH:MM YYYY (TZ)'' if the person has looked at their
 108 mailbox since new mail arriving, or ``New mail received ...'', ``Unread
 109 since ...'' if they have new mail.
 110 .It Fl m
 111 Prevent matching of
 112 .Ar user
 113 names.
 114 .Ar User
 115 is usually a login name; however, matching will also be done on the
 116 users' real names, unless the
 117 .Fl m
 118 option is supplied.
 119 All name matching performed by
 120 .Nm
 121 is case insensitive.
 122 .It Fl o
 123 When used in conjunction with the
 124 .Fl s
 125 option, the office location and office phone information is displayed
 126 instead of the name of the remote host.
 127 .It Fl p
 128 Prevent
 129 the
 130 .Fl l
 131 option of
 132 .Nm
 133 from displaying the contents of the
 134 .Pa .forward ,
 135 .Pa .plan ,
 136 .Pa .project
 137 and
 138 .Pa .pubkey
 139 files.
 140 .It Fl s
 141 Display the user's login name, real name, terminal name and write
 142 status (as a ``*'' before the terminal name if write permission is
 143 denied), idle time, login time, and either office location and office
 144 phone number, or the remote host.
 145 If
 146 .Fl o
 147 is given, the office location and office phone number is printed
 148 (the default).
 149 If
 150 .Fl h
 151 is given, the remote host is printed instead.
 152 .Pp
 153 Idle time is in minutes if it is a single integer, hours and minutes
 154 if a ``:'' is present, or days if a ``d'' is present.
 155 If it is an
 156 .Dq * ,
 157 the login time indicates the time of last login.
 158 Login time is displayed as the day name if less than 6 days, else month, day;
 159 hours and minutes, unless more than six months ago, in which case the year
 160 is displayed rather than the hours and minutes.
 161 .Pp
 162 Unknown devices as well as nonexistent idle and login times are
 163 displayed as single asterisks.
 164 .El
 165 .Pp
 166 If no options are specified,
 167 .Nm
 168 defaults to the
 169 .Fl l
 170 style output if operands are provided, otherwise to the
 171 .Fl s
 172 style.
 173 Note that some fields may be missing, in either format, if information
 174 is not available for them.
 175 .Pp
 176 If no arguments are specified,
 177 .Nm
 178 will print an entry for each user currently logged into the system.
 179 .Pp
 180 The
 181 .Nm
 182 utility may be used to look up users on a remote machine.
 183 The format is to specify a
 184 .Ar user
 185 as
 186 .Dq Li user@host ,
 187 or
 188 .Dq Li @host ,
 189 where the default output
 190 format for the former is the
 191 .Fl l
 192 style, and the default output format for the latter is the
 193 .Fl s
 194 style.
 195 The
 196 .Fl l
 197 option is the only option that may be passed to a remote machine.
 198 .Pp
 199 If the file
 200 .Pa .nofinger
 201 exists in the user's home directory,
 202 and the program is not run with superuser privileges,
 203 .Nm
 204 behaves as if the user in question does not exist.
 205 .Pp
 206 The optional
 207 .Xr finger.conf 5
 208 configuration file can be used to specify aliases.
 209 Since
 210 .Nm
 211 is invoked by
 212 .Xr fingerd 8 ,
 213 aliases will work for both local and network queries.
 214 .Sh ENVIRONMENT
 215 The
 216 .Nm
 217 utility utilizes the following environment variable, if it exists:
 218 .Bl -tag -width Fl
 219 .It Ev FINGER
 220 This variable may be set with favored options to
 221 .Nm .
 222 .El
 223 .Sh FILES
 224 .Bl -tag -width /var/log/lastlog -compact
 225 .It Pa /etc/finger.conf
 226 alias definition data base
 227 .It Pa /var/log/lastlog
 228 last login data base
 229 .El
 230 .Sh SEE ALSO
 231 .Xr chpass 1 ,
 232 .Xr w 1 ,
 233 .Xr who 1 ,
 234 .Xr finger.conf 5 ,
 235 .Xr fingerd 8
 236 .Rs
 237 .%A D. Zimmerman
 238 .%T The Finger User Information Protocol
 239 .%R RFC 1288
 240 .%D December, 1991
 241 .Re
 242 .Sh HISTORY
 243 The
 244 .Nm
 245 command appeared in
 246 .Bx 3.0 .
 247 .Sh BUGS
 248 The current FINGER protocol RFC requires that the client keep the connection
 249 fully open until the server closes.
 250 This prevents the use of the optimal
 251 three-packet T/TCP exchange.
 252 (Servers which depend on this requirement are
 253 bogus but have nonetheless been observed in the Internet at large.)
 254 .Pp
 255 The
 256 .Nm
 257 utility does not recognize multibyte characters.