After all this, if you want to read in data without the aid of a catalogue, there is the command
xsel > read filename
You can enter the files by hand on the command line, or dump their names to a file, say files.lis, and give @file.lis as the filename to the read command:
xsel > read "@file.lis"
The "s are necessary to keep XPI from expanding file.lis onto the command line (q.v. @ in XPI section).
There are several other functions which give more information about the data. To view the contents of the Event, or GTI files that have been entered, use the command
xsel > show event,gti
To see a list of the data read in, use the command
xsel > show data
To view the contents of the work or data directories, use the commands
xsel > list workdirectory
and
xsel > list datadirectory
Finally, to clear the data use
xsel > clear data