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uucico(8) System Manager's Manual uucico(8) NAME uucico - Transfers uucp command, data, and execute files to remote sys- tems SYNOPSIS uucico [-rrole_number] [-xdebug_level] [-ssystem_name] FLAGS The role_numbers are 1 for server mode and 0 (zero) for client mode. The default is 0 (zero). If uucico is started manually, set this flag to 1. Displays debugging information on the screen of the local termi- nal. The valid range for debug_level is 0 to 9. The higher the num- ber, the more detailed the final report. This flag is useful in cor- recting problems with the expect_send sequence in the Systems file. The name of the remote system. Use only when starting uucico manually. The system_name is supplied internally when uucico is started automati- cally. Note that system names must contain only ASCII characters. DESCRIPTION The uucico daemon transports uucp Command (C.*), Data (D.*), and Exe- cute (E.*) files created by the uucp and uux commands to a specified remote system. Both the local and remote systems run the uucico dae- mon, and the two daemons communicate with each other to complete trans- fer requests. The uucico daemon performs the following actions: Scans the spooling directory (/usr/spool/uucp/system_name) on the local system for trans- fer requests. Selects the device used for the communications connec- tion after checking the /usr/lib/uucp/Devices file and the lock files in the /var/spool/locks directory. Places a call to the specified re- mote 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 di- rectory. 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. ENVIRONMENT VARIABLES The following environment variables affect the execution of uucico: Specifies the flow control used on the connection. Permitted values are: HW (hardware), SW (software), and NONE. The uugetty on the remote system must also use the same flow control. 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. EXAMPLES To start the uucico daemon from the command line as a background process and contact the remote system hera, enter: /usr/lib/uucp/uucico -r1 -shera & To debug uucico connections, start the uucico daemon with the -x flag, and enter: /usr/lib/uucp/uucico -r1 -svenus -x9 FILES Specifies the command path The uucp configuration files Contains lock files that prevent multiple uses of devices and multiple calls to sys- tems Contains all the configuration files for uucp Contains information about available devices Contains dial-code abbreviations Specifies ini- tial handshaking on a link Limits scheduled jobs Limits remote command executions Describes access permissions for remote systems Describes accessible remote systems Lists uucico daemon errors that uucp cannot correct Contains uucico daemon log files Lists the last time a remote system was contacted and the minimum time until the next retry Contains C.*, D.*, and E.* files to be transferred by the uucico daemon Command files Data files Execute files Contains files after transfer by the uu- cico daemon RELATED INFORMATION Commands: cron(8), uucp(1), uustat(1), uutry(1), uuto(1), uux(1) delim off uucico(8)