Name
       wdat - read DAT tapes in Adonis format

Synopsis
       wdat [-d device] [-h] [-nr] [-l]
            [-l= file] [-fits] [-log]
            [-e= file] [-e MASK] [-s= file]
            [-s= MASK] [-q]

Description
       wdat  reads  DAT  tapes written in Adonis format. The Unix
       tar format is almost universal, but  is  not  that  conve-
       nient.  It is especially delicate to get anything out of a
       tape which had a problem. To prevent this, the Adonis for-
       mat  uses  separate  files  for each data cube. In case of
       tape damage, it is most likely that just one file would be
       lost  instead  of  all  files  after the damaged location.
       Another nice thing is that files can be read  on  the  fly
       and  thus deliver information to the user as soon as it is
       read.

       wdat accepts many options on  command-line.  Use  them  to
       indicate  which device you read the tape from, which files
       you want to include/exclude, if you only  want  to  get  a
       list of files, if you want to be notified before download-
       ing a file, etc. Check below.

Options
       -d device
              where device is the Unix name of the DAT reader  on
              your  machine.  It  is  most  often  something like
              /dev/nrst0 or the like. Default value is  the  con-
              tent of the TAPE environment variable.

       -h     Gives help about wdat

       -nr    Does not rewind the tape before first access.

       -l     list option, only lists DAT contents on terminal.

       -l= listfile
              list option, only lists DAT contents to file 'list-
              file'.

       -fits  Skips files if they are not FITS files.

       -log   Automatically translates logfiles (.LOG) from OS-9.

       -e= exfile
              exclude  option,  will exclude from downloading all
              files which name has been matched in exfile.

       -e MASK
              will exclude all files matching the mask. A mask is
              a  simple character string, all file names contain-
              ing this string will be excluded.

       -s= selfile
              select option,  will  select  for  downloading  all
              files which name has been matched in selfile.

       -s MASK
              will  load all files matching the mask. A mask is a
              simple character string, only file names containing
              this string will be loaded.

       -q     query option, will request user confirmation before
              any download of a file.

Files
       Selected/excluded files are simple plain ASCII files  con-
       taining  file names you want to select/exclude in the fol-
       lowing format: names are written plainly in ASCII, and are
       separated  by  carriage  returns  (other normal separators
       would work as well).

Example
       First, get the list of all files on the tape from a device
       named /dev/nrst0:
       wdat -d /dev/nrst0 -l= mylistfile
       Then edit the file to download only the files you wish to,
       with any text editor. Extra white spaces  are  not  impor-
       tant. The selection file shall look like:

       ADONISFILE_0001.FITS
       ADONISFILE_0002.FITS
       ...

       Then, to download only these:
       wdat -d /dev/nrst0 -s= mylistfile

Bugs
       To be reported as soon as possible to the author:
       Francois Lacombe, Observatoire de Paris-Meudon.
       e-mail : Francois.Lacombe@obspm.fr