FUNCTION Script to link names according the 'wfotfits' convention to the SDC-SAC convention. USAGE w_vaxlink -obsper number -prefix string [-datdir directory-name] DESCRIPTION When data is read from tape by invoking the 'dd' utility the resulting files are of the form 'PREFIX__####.POSTFIX' where standard POSTFIX is '.fot' and #### denotes the sequence number on the FOT as they also appear in the TAPE DIRECTORY (first file FOT. In order to enable the use of data retrieved by internet from SDC-SAC a conversion of the names is needed. By this convention file names are of the form 'FILETYPE_#####_##_@.DAT' where ##### are sequentially incremented numbers and @ is either mode 'I', 'N' or 'F' Below a sample (WFC1 only) of the FOT of OP 1234 in the order as they would have appeared on a FOT on tape medium tapedirtape_000000_00_0.dat ephemeris_000000_00_0.dat attitude_000000_00_0.dat obt_utc_000000_00_0.dat ithkd000_000000_00_0.dat tchkd000_000000_00_0.dat w1instdirtape_000000_00_0.dat w1obsdirtape_000000_01_i.dat w1exconf_01233_01_i.dat <--- 1233 = number of previous OP w1hkd000_01233_01_i.dat w1eng000_01233_01_i.dat w1dir001_01233_01_i.dat w1obsdirtape_000000_01_n.dat w1exconf_01234_01_n.dat <--- 1234 = number of this OP w1hkd000_01234_01_n.dat w1eng000_01234_01_n.dat w1dir001_01234_01_n.dat w1obsdirtape_000000_02_n.dat w1exconf_01234_02_n.dat w1hkd000_01234_02_n.dat w1eng000_01234_02_n.dat w1dir001_01234_02_n.dat w1obsdirtape_000000_01_f.dat w1exconf_01235_01_f.dat <--- 1235 = number of following OP w1hkd000_01235_01_f.dat w1eng000_01235_01_f.dat w1dir001_01235_01_f.dat OPTION SPECIFIERS -obsper [integer] Specifies the Observation Period of the Fot data If omitted the user is prompted to enter it -prefix [string] Specifies the string prefixed to the resulting linknames If omitted the user is prompted to enter it. If entered a '^' it will become the OP number prefeixed by 'OP' -datdir [string] Specifies the directory weher the Fot datais located. If omitted the current directory is taken as default. -ext [string] Specifies the extension of the linknames. Default '.fot' [NOT NORMALLY CHANGED] -test Only echo the link commands but do not perform EXAMPLE: Make linkfiles in current directory pointing to files in the data directory /FOTDIR of Obspervation Period 999 > w_vaxlink -obsper 999 -prefix OP999 -datdir /FOTDIR NOTES - By default the links are made in the current directory - the tape filenames must be either upper- or lowercase, but not mixed. - names of the DAT files are renamed with removed revision extensions ';*' - The Observation Period ID must be numeric and pertain to the Normal observing period (so NOT of Initial/Final Obs. Per.) - For reference see Document TPZ/GO.SDC-100/FOT-TN/SAX chapt 2.3 + 2.4 SEE ALSO w_proc, w_stageI