ecuhelp.src

一个通讯程序源码

This command displays statistics about ecu usage.

Example display when not connected to a remote system:
Date/time: 06-14-1988 11:40:35 (UTC 15:40)
Total chars transmitted: 178
Total chars received:    3681

Date/time: 06-14-1988 14:41:24 (UTC 18:41)
Connected to CompuHost (555-1234) at 14:40:57
Parameters: 2400-N-1 Connect time: 00:01:27
Total chars transmitted: 234 (since CONNECT 142)
Total chars received:    2278 (since CONNECT 1478)
#--------------------------------------------------------------------
%sx
Usage: sx [<file-name>]

This command invokes a modified version of Chuck Forsberg's sz program
(version 1.44) to send a file to the remote system using XMODEM/CRC.

After entering the command, you are prompted as to whether or not file
CR/LF characters are to be converted to newlines.  If you are
transferring text files from a system which contain CR/LF line termi-
nators, you must answer yes to this question.  You should answer no when
transferring binary files, such as executables, .arc files and the like.

You are prompted to enter a filename to send.  File transfer progress is
presented on a visual display.  To abort the transfer, press your
interrupt key (usually DEL unless reset with stty(C)).
#--------------------------------------------------------------------
%sy
Usage: sy [<file-list>]

This command invokes a modified version of Chuck Forsberg's sz program
(version 1.44) to send file(s) to the remote system using YMODEM/CRC.

You are prompted to enter filename(s) to send, which may consist of one
or more wildcard specifications.  File transfer progress is presented on
a visual display.  To abort the transfer, press your interrupt key
(usually DEL unless reset with stty(C)).
#--------------------------------------------------------------------
%sz
Usage: sz [<file-list>]

This command invokes a modified version of Chuck Forsberg's sz program
(version 1.44) to send file(s) to the remote system using ZMODEM/CRC32.

You are prompted to enter filename(s) to send, which may consist of one
or more wildcard specifications.  File transfer progress is presented on
a visual display.  To abort the transfer, press your interrupt key
(usually DEL unless reset with stty(C)).

Note: if you specify sending only newer files and the remote receiver
does not support the feature, it may skip (reject) all your files.
Retry the transfer specifying 'N' to 'Transfer only newer files'.
#--------------------------------------------------------------------
%time
Usage: time

This command displays the local date and time as well as the current UTC.
#--------------------------------------------------------------------
%tty
Usage: tty

This command displays the current console tty name.
#--------------------------------------------------------------------
%exit
Usage: exit

This command terminates ecu promptly.  If your modem does not drop
carrier upon loss of Data Terminal Ready (DTR), you must use the
'hangup' command prior to issuing the 'exit' command.  It is strongly
recommended that you configure your modem to hang up the phone line when
DTR drops.  A shorthand version of this command exists: '.' is
equivalent to 'exit'.
#--------------------------------------------------------------------
%xon
Usage: xon [<arg>]
where <arg> is on    input and output flow control
               off   no flow control
               in    input flow control
               out   output flow control

This command enables or disables xon/xoff flow control.  If the
argument is omitted, the current flow control state is displayed.
#--------------------------------------------------------------------
%!
Usage: !
       !<command>

The '!' command is a shell escape.  The environment variable SHELL is
read to determine what shell program to execute (e.g., /bin/sh, etc).
If '!' is entered by itself, an interactive shell is started; press ^D
to exit back to ecu.  If <command> is supplied, it is executed by the
shell with an immediate return to ecu.

Similarly,
  '$' causes the communications line to be stdin and stdout
      for the spawned shell
  '-' is similar to '>', except the command is executed directly
      without going through a shell.
#--------------------------------------------------------------------
%$
Usage: $
       $<command>

The '$' command is a shell escape causing the communications line to be
the stand input and output.  The environment variable SHELL is read to
determine what shell program to execute (e.g., /bin/sh, etc).  If '$' is
entered by itself, an interactive shell is started; a ^D received from
the communications line causes the shell to terminate and control to be
passed back to ecu.  If <command> is supplied, it is executed by the
shell with an immediate return to ecu.
#--------------------------------------------------------------------
%-
Usage: -<command>

The '-' command causes <command> to be executed directly without
passing through a shell (no wildcard expansion or other shell
processing occurs).  Standard input, output and error all are
opened to the console.  In addition, all other files (including
the communications line) opened by ecu remain open.
#--------------------------------------------------------------------
%?
Usage: ?

This is an alias for the help command.
#--------------------------------------------------------------------
%clrx
Usage: clrx

The 'clrx' command simulates receipt of an XON by ECU.  It is useful
in the rare circumstances that an XOFF is received by ECU from a 
remote system and no later XON is received.
#--------------------------------------------------------------------
%pcmd
Usage: pcmd <procedure command>

The 'pcmd' command allows a procedure command to be issued from the
interactive command prompt.  It is primarily intended for debugging
procedure commands, but it is available for any use.
#--------------------------------------------------------------------
%plog
Usage: plog [<filename> | off | ]

The 'plog' command turns on or off procedure logging.  If the
argument to the command is 'off', logging is turned off, otherwise
logging is started on the specified file.  If no argument is specified,
the status of procedure logging is displayed.
#--------------------------------------------------------------------
%rtscts
usage: rtscts [ off | on | no | yes | 0..7 ]

This command turns on or off the driver RTS and CTS flow control if
support is provided by the OS. This is a complex subject
and you should refer to the manual and the UNIX oral/net
tradition if you are confused.

For SCO:
argument | RTSFLOW | CTSFLOW   argument | RTSFLOW | CTSFLOW | CRTSFL
---------+---------+---------  ---------+---------+---------+--------
  off    |   0     |   0         0      |   0     |   0     |
  on     |   0     |   1         1      |   0     |   1     |
  no     |   0     |   0         2      |   1     |   0     |
  yes    |   0     |   1         3      |   1     |   1     |
                                 4      |   0     |   0     |   1

Choice 4 only works on SCO 3.2v4 and ODT 2.0.  As you can see, numeric
values are masks.  If the 4 bit is present in the numeric value, it
overrides the lower-order bits: Specifying 7 as an argument specifies
CRTSFL is to be used if it is supported, otherwise RTSFLOW and CTSFLOW.

A similar feature is provided under SVR4 and SunOS.  See the ecu manual
and your system's termio man page (termios for SunOS) for details.
#--------------------------------------------------------------------
%sdname
Usage: sdname [<filename> | ]

This command sets or displays the current screen dump filename.
Until the command is issued, screen dump data is placed in
~/.ecu/screen.dump.
#--------------------------------------------------------------------
%sgr
Usage: sgr mode cmd

This experimental command is used to test the timed read primitive
used by ECU.  The command <cmd> is sent to the line and a timed read
is performed.  The data returned is displayed in hexadecimal format on
the console.  The stimulus (cmd) and response is logged in
./ecu.sgr.log if the current directory must be writable.  Refer to
source module ecugrabbag.c function send_get_response() for details.
#--------------------------------------------------------------------
%ts
Usage: ts

This experimental command displays raw termio structure information
for the console and the tty.  It is primarily used in debugging ECU.
#--------------------------------------------------------------------
%xlog
Usage: xlog [y | n]

This experimental command controls exhaustive logging by the X, Y, and
ZMODEM file transfer protocols to files named /tmp/szNNNNN.log or
/tmp/rzNNNNN.log where NNNNN is the process id of the transfer process.
#--------------------------------------------------------------------
%eto
Usage: eto [msec]

This experimental command sets or displays the "escape timeout"
for non-multiscreen function key detection.  Use caution: although
the command has a lower limit, you may set the value low enough
not to be able to use the HOME key!
#--------------------------------------------------------------------
%nice
Usage: nice [niceval]

This command sets or displays the process nice value.  The usual
rules apply (hint: you might accidently nice4 yourself into not
getting enough CPU!)
#--------------------------------------------------------------------
%pushd
Usage: pushd [ | <dir> ]

This command either 1) pushes the current directory pathname onto
a stack and establishes a new direcctory or 2) shows the current
stack.  Issuing the command with no argument displays the stack.
#--------------------------------------------------------------------
%popd
Usage: pushd [ | <#> | all ]

This command pops one, many or all of the entries off diretory stack,
restoring a previous directory.  No argument results in one directory
being popped.  A numeric argument pops the stack to a specified level.
'all' is equal to the numeric value 0 (and may be abbreviasted 'a').