Execute files (X. files)

Files in the BNU spool directories that have filenames beginning with the characters X. are execute files. Execute files are created in the spool directory prior to remote command executions. The names of execute files have the following format:

X.sysnxxxx

where sys is the name of the remote computer, n is the character representing the grade (priority) of the work, and xxxx is a four digit number assigned by uucp. Execute files contain the following information:

• requester's login and computer name

• name of file(s) required for execution

• input file to be used as the standard input to the command string

• computer and filename to receive standard output and standard error from the command execution

• command string

• option lines for return status requests