Other utilities are ut and utday print out the universal time and date in nice formats. They are usually just shell scripts that get their input from environment variables. The commonly available user procedures are the following. In addition there are procedures that are used internally for maintenance and calibrations. There are a variety of log files generated by the telescope and written into the da directory.
Many programs write temporary files.
Some of these have the process number and the extension .tmp and are usually deleted by the process. However, others are left around for a day or two in case some problem has to be debugged. The nofat shell script deletes these files as well as compress all the FITS files and convert all photometry and supernova search files into archives. The END statement serves to delit the two portions of the file. The subheader command may be used to strip off either part of this file.