System Spool Directories

`system'

There is a subdirectory of the main spool directory for each remote system.

`system/C.'

This directory stores files describing file transfer commands to be sent to the system. Each file name starts with `C.g', where g is the job grade. Each file contains one or more commands. For details of the commands, see section UUCP Protocol Commands.

`system/D.'

This directory stores data files. Files with names like `D.gssss', where g is the grade and ssss is a sequence number, are waiting to be transferred to the system, as directed by the files in the `system/C.' directory. Files with other names, typically `D.systemgssss', have been received from system and are waiting to be processed by an execution file in the `system/X.' directory.

`system/D.X'

This directory stores data files which will become execution files on the remote system. In current practice, this directory rarely exists, because most simple executions, including typical uses of rmail and rnews, send an `E' command rather than an execution file (see section The E Command).

`system/X.'

This directory stores execution files which have been received from system. This directory normally exists, even though the corresponding `D.X' directory does not, because uucico will create an execution file on the fly when it receives an `E' command.

`system/SEQF'

This file holds the sequence number of the last job sent to system. The sequence number is used to ensure that file names are unique in the remote system spool directory. The file is four bytes long. Sequence numbers are composed of digits and the upper case letters.

Go to the first, previous, next, last section, table of contents.