NAME: barrel_write_config DESCRIPTION: Writes the barrel_config file REQUIRED INPUTS: none (filename is hardcoded, 'barrel_config.txt', and is put in a folder given by the routine 'barrel_config_filedir', that uses the IDL routine app_user_dir to create/obtain it: e.g. (MacOS X) /Users/username/.idl/themis/barrel_config-4_darwin KEYWORD ARGUMENTS (OPTIONAL): COPY: If set, make a copy, creating a new file whose filename is timestamped with an appended !STIME. OUTPUT the file is written, and a copy of any old file is generated STATUS: TO BE ADDED: n/a EXAMPLE: REVISION HISTORY: Version 0.90a KBY 04/19/2013 no changes Version 0.84 KBY 12/04/2012 added header Version 0.83 KBY 12/04/2012 initial beta release Version 0.80 KBY 10/29/2012 from 'goesmag/goes_write_config.pro' by JWL(?)