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AIX Version 4 Files Reference

/var/spool/uucp/SystemName Directories for BNU


Contain queued requests for file transfers and command executions on remote systems.


The /var/spool/uucp/SystemName directories are the Basic Networking Utilities (BNU) spooling directories on the local system. The BNU program creates a SystemName directory for each system listed in the /etc/uucp/Systems file, including the local system.

Each SystemName directory contains queued requests issued by local users for file transfers to remote systems and for command executions on remote systems.

The BNU program uses several types of administrative files to transfer data between systems. The files are stored in the SystemName directories:

command (C.*) Contain directions for the uucico daemon concerning file transfers.
data (D.*) Contain data to be sent to remote systems by the uucico daemon.
execute (X.*) Contain instructions for running commands on remote systems.
temporary (TM.*) Contain data files after their transfer to the remote system until the BNU program can deliver them to their final destinations (usually the /var/spool/uucppublic directory).

Implementation Specifics

These directories are part of the Basic Networking Utilities Program (BNU) in BOS Extensions 1.

Related Information

The uucp command, uux command.

The uucico daemon, uusched daemon, uuxqt daemon.

Understanding the BNU Daemons, Understanding the BNU File and Directory Structure and Using BNU Maintenance Commands in AIX Version 4.3 System Management Guide: Communications and Networks.

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