NEW_DPATH will add elements to the Yohkoh data paths array. These are the disk areas
automatically searched for reformatted files. A file option allows reading from a file
of pathnames. This can be conveniently called from an a personal IDL startup file to
automatically define paths when entering IDL. Switches are available to add current directory,
initialize contents, remove elements, or save current contents for later input via file option.
IDL> new_dpath, patharray
IDL> new_dpath, /current
IDL> new_dpath, /init
IDL> new_dpath, /file
IDL> new_dpath, file=file
IDL> new_dpath, /save
Current contents of data paths area may be reviewed with the command:
IDL> prstr, data_paths()