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uucico(8)
NAME
  uucico - Transfers uucp command, data, and execute files to remote systems

SYNOPSIS
  uucico [-r role_number] [-x debug_level] [-s system_name]

OPTIONS
  -r role_number
      Valid values for role_number are: 1 for server mode and 0 (zero) for
      client mode.  The default is 0.  If uucico is started manually, set
      this option to 1.

  -x debug_level
      Displays debugging information on the screen of the local terminal.
      The valid range for debug_level is 0 to 9.  The higher the number, the
      more detailed the final report.  This option is useful in correcting
      problems with the expect_send sequence in the Systems file.

  -s system_name
      The name of the remote system.  Use only when starting uucico manually.
      The system_name is supplied internally when uucico is started
      automatically.

      Note that system names must contain only ASCII characters.

DESCRIPTION
  The uucico daemon transports uucp Command (C.*), Data (D.*), and Execute
  (E.*) files that are created by the uucp and uux commands to a specified
  remote system. Both the local and remote systems run the uucico daemon, and
  the  daemons on the two systems communicate with each other to complete
  transfer requests.

  The uucico daemon performs the following actions:

    ·  Scans the spooling directory (/usr/spool/uucp/system_name) on the
       local system for transfer requests.

    ·  Selects the device used for the communications connection after
       checking the /usr/lib/uucp/Devices file and the lock files in the
       /var/spool/locks directory.

    ·  Places a call to the specified remote system using information in the
       Systems, Dialers, and Dialcodes files located in the /usr/lib/uucp
       directory.

    ·  Performs the required login sequence specified in the Systems file.

    ·  Checks permissions listed in the /usr/lib/uucp/Permissions file.

    ·  Checks scheduling limits in the Maxuuscheds and Maxuuxqts files
       located in the /usr/lib/uucp directory.

    ·  Runs all transfer requests from both the local and the remote system,
       placing the transferred files in the public directories
       (/usr/spool/uucppublic/*).

    ·  Logs transfer requests and completions in files in the
       /usr/spool/uucp/.Log/uucico directory.

    ·  Notifies specified users of transfer requests.

  Usually the uucico daemon is called by the uucp and uux commands when
  needed, and is started periodically by the uucp scheduling daemon, uusched,
  which is started by the cron daemon.

  The uucico daemon can be started from the command line for debugging. The
  uucp command uutry also starts uucico with debugging turned on.

  In the case of a uux command request for the execution of a command on a
  remote system, the uucico daemon transfers the files, and the uuxqt daemon
  executes the command on the remote system.

EXAMPLES
   1.  To start the uucico daemon from the command line as a background
       process and contact the remote system hera, enter:

	    /usr/lib/uucp/uucico -r 1 -s hera &

   2.  To debug uucico connections, start the uucico daemon with the -x
       option, and enter:

	    /usr/lib/uucp/uucico -r 1 -s venus -x 9

ENVIRONMENT VARIABLES
  The following environment variables affect the execution of uucico:

  FLWCTL
      Specifies the flow control used on the connection. Permitted values
      are: HW (hardware), SW (software), HSW (hardware and software), and
      NONE. The uugetty on the remote system must also use the same flow
      control.

  UUTIMEOUT
      Specifies the amount of time (in seconds) for uucico to try to
      establish a connection before it times out.  A value of 0 (zero)
      indicates an unlimited amount of time.

FILES
  /usr/lib/uucp/uucico
      Specifies the command path

  /usr/lib/uucp
      Contains all the configuration files for uucp

  /usr/lib/uucp/Devices
      Contains information about available devices

  /usr/lib/uucp/Dialcodes
      Contains dial-code abbreviations

  /usr/lib/uucp/Dialers
      Specifies initial handshaking on a link

  /usr/lib/uucp/Maxuuscheds
      Limits scheduled jobs

  /usr/lib/uucp/Maxuuxqts
      Limits remote command executions

  /usr/lib/uucp/Permissions
      Describes access permissions for remote systems

  /usr/lib/uucp/Systems
      Describes accessible remote systems

  /usr/spool/uucp/.Admin/errors
      Lists uucico daemon errors that uucp cannot correct

  /usr/spool/uucp/.Log/uucico
      Contains uucico daemon log files

  /usr/spool/uucp/.Status/system_name
      Lists the last time a remote system was contacted and the minimum time
      until the next retry

  /usr/spool/uucp/system_name
      Contains C.*, D.*, and E.* files to be transferred by the uucico daemon

  /usr/spool/uucp/system_name/C.*
      Command files

  /usr/spool/uucp/system_name/D.*
      Data files

  /usr/spool/uucp/system_name/E.*
      Execute files

  /usr/spool/uucppublic/*
      Contains files after transfer by the uucico daemon

  /var/spool/locks
      Contains lock files that prevent multiple uses of devices and multiple
      calls to systems

SEE ALSO
  Commands: uucp(1), uustat(1), uutry(1), uuto(1), uux(1), cron(8)

Index for Section 8

Alphabetical listing for U

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