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1 dterm: A simple terminal program
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2
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3
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4 dterm is a simple terminal emulator, which doesn't actually emulate
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5 any particular terminal. Mainly, it is designed for use with xterm
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6 and friends, which already do a perfectly good emulation, and therefore
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7 don't need any special help; dterm simply provides a means by which
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8 keystrokes are forwarded to the serial line, and data forwarded from
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9 the serial line appears on the terminal.
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10
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11
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12 Running dterm
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13
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14 dterm is invoked thusly:
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15
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16 dterm [options|device ...]
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17
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18 dterm attempts to read the file ~/.dtermrc for options; if this doesn't
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19 exist, it tries /etc/dtermrc. Then it parses the options passed on the
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20 command line.
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21
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22 The options read should include a device name, e.g "ttyS0" or "ttyd0"
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23 for the first serial port on a Linux or FreeBSD system respectively. If
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24 no device is specified, dterm tries /dev/ttyS0, /dev/ttyd0, /dev/ttyUSB0
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25 and /dev/ttyU0.
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26
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27 Once started, dterm can be got into command mode using Ctrl/]. Press
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28 enter once from command mode to get back into conversational mode. (The
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29 command character can be changed with the esc= option, e.g. esc=p to
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30 use Ctrl/P instead of Ctrl/].)
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31
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32
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33 Options
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34
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35 The following options can be used from command mode
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36
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37 - 300, 1200, 9600 etc: Set speed, default 9600.
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38 - 5, 6, 7, 8: Set bits per character, default 8.
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39 - 1, 2: Set number of stop bits, default 1.
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40 - e, o, n, m, s: Set parity to even, odd, none, mark or space, default none.
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41 - cts, nocts: Enable / disable CTS flow control, default nocts.
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42 - xon, noxon: Enable / disable XON/XOFF flow control, default noxon.
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43 - modem: Enable / disable modem control (hang up modem on exit, exit if
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44 modem hangs up), default nomodem.
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45 - bs, nobs: Enable / disable mapping of Delete to Backspace, default nobs.
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46 - del, nodel: Enable / disable mapping of Backspace to Delete, default nodel.
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47 - maplf, nomaplf: Enable / disable mapping of LF to CR, default nomaplf.
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48 - igncr, noigncr: Ignore / output carriage returns, default noigncr.
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49 - crlf, nocrlf: Enable / disable sending LF after each CR, default nocrlf.
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50 - ctrl, noctrl: Enable / disable control character display mode. In this
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51 mode, non-printable characters are displayed as ^c for the codes 0-31 (except
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52 CR, LF & TAB), [DEL] for 127, or [xx] for non-printing characters >= 128.
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53 - hex, nohex: As for ctrl, but prints [xx] for all characters except 7-bit
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54 printable ASCII, CR and LF.
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55 - b: Send a 500 ms break.
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56 - dtr, nodtr: Raise / lower DTR, default dtr.
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57 - rts, norts: Raise / lower RTS, default rts.
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58 - d, r: Toggle DTR / RTS.
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59 - esc=<c>: Set command mode character to Ctrl/<c> (default ']')
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60 - @<filename>: Read and process configuration from <filename>.
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61 - !<command>: Execute shell command
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62 - sx <filename>: Send a file using XMODEM.
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63 - rx <filename>: Receive a file using XMODEM.
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64 - sz <filename>: Send a file using ZMODEM.
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65 - rz: Receive file(s) using ZMODEM.
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66 - show: Display current configuration and modem status.
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67 - help, h, ?: Display a summary of commands.
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68 - version: Display version, copyright and warranty information.
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69 - quit, q: Exit
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70
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71
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72 File Transfer
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73
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74 If the rzsz package (or lrzsz) package is installed, the sx, sz, rx & rz
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75 commands can be used to initiate file transfers using the reliable
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76 XMODEM and ZMODEM file transfer protocols. Note that the program files
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77 for rzsz must be in /usr/bin or /usr/local/bin for dterm to find them.
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78
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79 Note that rx, sx and rz require that the transfer be initiated at the
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80 remote end before escaping back to the dterm command prompt. sz will send
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81 an "rz" command down the serial link in start-up to initiate the transfer.
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82
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83 This version also supports plain ascii transfers using `ascii-xfr`. Use
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84 commands sa/ra to do ascii transfers.
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85
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86
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87 Examples
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88
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89 Connect via ttyS1 to a system running at 2400 bps, 7 bits even parity:
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90
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91 dterm ttyS1 2400 7 e
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92
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93 Send a break in a running session:
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94
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95 ^]
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96 dterm> b
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97 dterm>
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98
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99 Transmit a file using ZMODEM:
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100
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101 ^]
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102 dterm> sz file.txt
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103 rz waiting to receive.Sending: file.txt
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104 Bytes Sent: 22943 BPS:645
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105 Transfer complete
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106 dterm>
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107
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108
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109 Copyright
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110
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111 dterm is Copyright 2007 Knossos Networks Ltd.
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112 Copyright 2017 John Tsiombikas <nuclear@member.fsf.org>
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113
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114 This program is free software; you can redistribute it and/or
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115 modify it under the terms of the GNU General Public License version 2
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116 as published by the Free Software Foundation.
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117
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118 This program is distributed in the hope that it will be useful,
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119 but WITHOUT ANY WARRANTY; without even the implied warranty of
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120 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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121 GNU General Public License for more details.
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122
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123 A copy of the GNU General Public License version 2 is available at
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124 http://www.knossos.net.nz/gpl.html or can be obtained from the Free
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125 Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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126 02110-1301 USA.
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127
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128
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129 Source Code
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130
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131 Mercurial repo: http://nuclear.mutantstargoat.com/hg/dterm-nuc
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132
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133 original dterm source code is located at
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134 http://www.knossos.net.nz/downloads/dterm-0.3.tgz
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135
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