Annotation of src/usr.bin/rsh/rsh.1, Revision 1.17
1.17 ! jmc 1: .\" $OpenBSD: rsh.1,v 1.16 2007/03/20 15:46:51 jmc Exp $
1.6 aaron 2: .\"
1.1 deraadt 3: .\" Copyright (c) 1983, 1990 The Regents of the University of California.
4: .\" All rights reserved.
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1.13 millert 14: .\" 3. Neither the name of the University nor the names of its contributors
1.1 deraadt 15: .\" may be used to endorse or promote products derived from this software
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30: .\" from: @(#)rsh.1 6.10 (Berkeley) 7/24/91
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1.17 ! jmc 32: .Dd $Mdocdate$
1.1 deraadt 33: .Dt RSH 1
1.5 aaron 34: .Os
1.1 deraadt 35: .Sh NAME
36: .Nm rsh
37: .Nd remote shell
38: .Sh SYNOPSIS
39: .Nm rsh
1.14 jmc 40: .Op Fl dn
1.1 deraadt 41: .Op Fl l Ar username
1.7 aaron 42: .Ar hostname
1.4 aaron 43: .Op Ar command
1.1 deraadt 44: .Sh DESCRIPTION
1.6 aaron 45: .Nm
1.1 deraadt 46: executes
47: .Ar command
48: on
1.7 aaron 49: .Ar hostname .
1.1 deraadt 50: .Pp
1.11 millert 51: .Em Note:
52: .Nm
53: has been deprecated in favor of
54: .Xr ssh 1 .
55: Use of
56: .Nm
57: is discouraged due to the inherent insecurity of host-based authentication.
58: .Pp
1.6 aaron 59: .Nm
1.1 deraadt 60: copies its standard input to the remote command, the standard
61: output of the remote command to its standard output, and the
62: standard error of the remote command to its standard error.
63: Interrupt, quit and terminate signals are propagated to the remote
64: command;
1.6 aaron 65: .Nm
1.1 deraadt 66: normally terminates when the remote command does.
1.6 aaron 67: .Pp
1.1 deraadt 68: The options are as follows:
1.8 aaron 69: .Bl -tag -width Ds
1.1 deraadt 70: .It Fl d
1.7 aaron 71: Enable socket debugging (using
1.6 aaron 72: .Xr setsockopt 2 )
1.1 deraadt 73: on the
74: .Tn TCP
75: sockets used for communication with the remote host.
1.16 jmc 76: .It Fl l Ar username
1.1 deraadt 77: By default, the remote username is the same as the local username.
78: The
79: .Fl l
80: option allows the remote name to be specified.
81: .It Fl n
1.7 aaron 82: Redirect input from the special device
1.1 deraadt 83: .Pa /dev/null
84: (see the
85: .Sx BUGS
86: section of this manual page).
87: .El
88: .Pp
89: If no
90: .Ar command
91: is specified, you will be logged in on the remote host using
1.15 millert 92: .Xr ssh 1 .
1.7 aaron 93: .Pp
94: If
95: .Nm
96: is not invoked with the standard program name
97: .Pq Dq rsh ,
98: it uses this name as its
99: .Ar hostname
100: argument.
1.1 deraadt 101: .Pp
1.4 aaron 102: Shell meta-characters which are not quoted are interpreted on local machine,
103: while quoted meta-characters are interpreted on the remote machine.
1.1 deraadt 104: For example, the command
105: .Pp
1.12 deraadt 106: .Dl $ rsh otherhost cat remotefile >> localfile
1.1 deraadt 107: .Pp
108: appends the remote file
109: .Ar remotefile
110: to the local file
111: .Ar localfile ,
112: while
113: .Pp
1.12 deraadt 114: .Dl $ rsh otherhost cat remotefile \&">>\&" other_remotefile
1.1 deraadt 115: .Pp
116: appends
117: .Ar remotefile
118: to
119: .Ar other_remotefile .
120: .\" .Pp
121: .\" Many sites specify a large number of host names as commands in the
122: .\" directory /usr/hosts.
123: .\" If this directory is included in your search path, you can use the
124: .\" shorthand ``host command'' for the longer form ``rsh host command''.
125: .Sh FILES
126: .Bl -tag -width /etc/hosts -compact
127: .It Pa /etc/hosts
128: .El
129: .Sh SEE ALSO
1.15 millert 130: .Xr ssh 1 ,
1.3 deraadt 131: .Xr rcmd 3
1.1 deraadt 132: .Sh HISTORY
133: The
1.6 aaron 134: .Nm
1.1 deraadt 135: command appeared in
136: .Bx 4.2 .
137: .Sh BUGS
138: If you are using
1.6 aaron 139: .Xr csh 1
1.1 deraadt 140: and put a
1.6 aaron 141: .Nm
1.1 deraadt 142: in the background without redirecting its input away from the terminal,
143: it will block even if no reads are posted by the remote command.
144: If no input is desired you should redirect the input of
1.6 aaron 145: .Nm
1.1 deraadt 146: to
147: .Pa /dev/null
148: using the
149: .Fl n
150: option.
151: .Pp
152: Stop signals stop the local
1.6 aaron 153: .Nm
1.1 deraadt 154: process only; this is arguably wrong, but currently hard to fix for reasons
155: too complicated to explain here.
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