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Files beginning with $

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    Files beginning with $

    I have been using Alpha 5 for two years now and I have dozens of files beginning with the $ sign in the Alpha directory. I assume these are temporary files which I can delete. Is this the case? Also why does Alpha create them?
    Gil Smith

    #2
    RE: Files beginning with $

    These are temporary index files which alpha makes while building a query list. You may safely delete. Look in view settings for the checkbox that tells Alpha to delete temp files on exit.

    Bill
    Bill Hanigsberg

    Comment


      #3
      RE: Files beginning with $

      Bil, as always, is correct. Sometimes Alpha doesn't delete the files, even though you have made the suggested settings. I'm including a script (author undientified, supplied by another board member, and though I've searched, I can't identify) that will delete .mpx files. It can easily be modified to delete any other files you like. Best attached to the onexit event of your startup form.

      ''XBasic
      on error goto no_mpx_files
      files = filefind.first(:A5.Get_Shared_Path() + chr(92) + "*.mpx")
      WHILE .not. files.eof()
      table_name = files.name() 'cleanup alpha
      file.remove(table_name)
      files.next()
      end while
      END

      no_mpx_files:
      on error goto 0
      END
      There can be only one.

      Comment


        #4
        RE: Files beginning with $

        Stan,

        I've been wondering about that myself. Thanks for the answer and the code.

        Regards,

        Geoff Hollander

        Comment


          #5
          RE: Files beginning with $

          Like I stated earlier

          (author unidentified, supplied by another board member, and though I've searched, I can't identify)


          It's a wonderful script, but not mine. Will the author please take a bow.
          There can be only one.

          Comment


            #6
            RE: Files beginning with $

            I believe it is from Finian Lennon but I may be mistaken.

            Bill
            Bill Hanigsberg

            Comment


              #7
              RE: Files beginning with $

              I didn't think he was that smart. Go figure.
              There can be only one.

              Comment


                #8
                RE: Files beginning with $

                Stan,

                The code you listed (I know you don't take claim for it!) will not work correctly for 2 reasons. First and foremost is the fact that mpx files are stored in the Private Path, not the shared path. On many systems this is the same, but not always. Second, if there is an MPX file currently in use, an error will occur and the code will stop immediately.

                Listed below (and attached as a ZIP file) is code that works a bit better.

                Regards,

                Ira J. Perlow
                Computer Systems Design & Associates
                [email protected]


                function DeleteTempFiles as N()
                ' Created by Computer Systems Design & Associates
                ' Copyright 2001 Computer Systems Design & Associates, All Rights Reserved
                ' Last Update: December 10, 2000

                ' Purpose: To delete all temporary files ending in "mpx" in the private directory.
                ' If file is not accessible or is being used, it will not be deleted.

                ' Input: None

                ' Output:# of files deleted

                ' Errors:None

                ' Typical Usage:
                ' DeleteTempFiles()

                ' Examples:
                ' DeleteTempFiles()

                ' Notes:

                ' Set inital return value
                DeleteTempFiles=0

                ' Set filespec of temporary files to delete
                Filespec="*.mpx"

                ' Save the original directory
                orgdir=dir_get()

                ' Set private path as current directory
                newdir=dir_put(:A5.Get_Private_Path())

                ' Get first file in directory that meets file spec
                filelist=filefind.first(filespec)

                ' Set Delete count initially to 0
                delcnt=0

                ' Set Unable to Delete count initially to 0. This count is only used for debug
                nodel=0

                ON ERROR GOTO error_handler
                WHILE .not.filelist.eof()
                ' Set error flag to 0
                errflag=0

                ' Try to remove file
                File.Remove(filelist.name())
                ' trace.writeln("File to be removed="+chr(34)+dir_get()+chr(92)+filelist.name()+chr(34))

                ' Set counts
                IF errflag=0
                delcnt=delcnt+1
                ELSE
                nodel=nodel+1
                END IF

                ' Get pointer to next file
                filelist.next()
                END WHILE

                ON ERROR GOTO 0

                ' Restore Original directory
                dir_put(orgdir)

                ' Return count of files deleted
                DeleteTempFiles=delcnt

                'trace.writeln("Deleted Count="+LTRIM(STR(delcnt))+" Not Deleted Count="+LTRIM(STR(nodel)))

                END

                ' Error Handler sets errflag to 1 if error
                error_handler:
                'trace.writeln("Error code="+ltrim(str(error_code_get()))+" Error text="+error_text_get())
                errflag=1
                RESUME NEXT

                END

                end function

                Regards,

                Ira J. Perlow
                Computer Systems Design


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