Editing Scanco Administration (section)

====Fix corrupted VMS files when moved to or from a PC====

There seem to be two options. The most simple one is to simply run:

 $ set file/attr=(lrl:512, rfm:fix) filename.isq

Alternatively, we start by getting good file format/attributes from a good aim/isq/gobj, etc.

  $ ana/rms/fdl/out=correct.fdl good.aim

Then we edit the file <code>correct.fdl</code>, leaving only 5 lines:
  RECORD
        BLOCK_SPAN                        yes
        CARRIAGE_CONTROL                  none
        FORMAT                            fixed
        SIZE                              512
 
Now we have to set the file attributes of the affected aim (isq, gobi) file:

  $ set file/attr=lrl=514 bad.aim    ! Yes, 514
  $ set file/attr=lrl=514 *.AIM        ! do a bunch at a time

Finally we create a fixed file

  $ convert/fdl=correct.fdl/trunc bad.aim converted.aim

This process discards the superfluous 2 bytes, usually caused by transferring to/from a PC.


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