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Files Reference

Data (D.*) Files for BNU


Contain data to be sent to remote systems.


Data (D.*) files contain the data to be sent to remote systems by the Basic Networking Utilities (BNU) uucico daemon. The full path name of a data file is a form of the following:


where the SystemName directory and the SystemName portion of the file name indicate the name of the remote system. The xxxx### notation is the hexadecimal sequence number of the command (C.*) file associated with that data file, for example: D.venus471afd8.

After a set period of time (specified by the uusched daemon), the uucico daemon transfers the data file to the designated system. It places the original data file in a subdirectory of the BNU spooling directory named /var/spool/uucp/SystemName, where the SystemName directory is named for the computer that is transmitting the file, and creates a temporary (TM.*) file to hold the original data file.

After receiving the entire file, the BNU program takes one of the three following actions:

Implementation Specifics

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


/etc/uucp/Systems Describes accessible remote systems.
/var/spool/uucp/SystemName directory Contains BNU command, data, and execute files.
/var/spool/uucp/SystemName/C.* Contains instructions for file transfers.
/var/spool/uucp/SystemName/TM.* Stores data files temporarily after they have been transferred to a remote system.
/var/spool/uucppublic/* directory Contains files that the BNU program has transferred.

Related Information

The uucp command, uudemon.cleanu command, uupick command, uuto command, uux command.

The uucico daemon, uusched daemon, uuxqt daemon.

BNU File and Directory Structure, BNU Daemons, BNU Maintenance Commands in AIX 5L Version 5.1 System Management Guide: Communications and Networks.

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