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- For all you 8080 users, this program is in 8080 code.
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- EXTRACT is a program that allows a person to down load a '.LBR'
- file in its entirety and then extract any part or all of it at his
- leisure. One of the problems I encountered was down loading files,
- then missing a critical one. I currently am running 8 floppy drives
- and four hardisks, which created the necessity of extracting files to
- different user numbers as well as different drives. EXTRACT allows
- this from the command line. The format is the same that Compuview
- uses in the "VPLUS" editor.
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- EXTRACT has a built in help function, to use just enter
- "EXTRACT" and this will bring up the help menu.
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- The format for the command is drive colon, library file name
- with an optional extent. If a extent isn't entered, the default is
- ".LBR". If the library file is under a different user, right after
- the filename enter "=X" where "X" is the user number. Note, do not
- enter a space after the file name. When the library file names is
- entered, enter a space, followed by the optional drive name that the
- files will go to, followed with the file name and extension. The
- filename and extension can be any valid CP/M filename entry,
- including wildcards. After this is entered, you can enter an optional
- "=X" which will send the output to user number "X".
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- At the beginning of EXTRACT at location 103H is a flag for
- automatic erasure of an existing output file. If this flag is equal
- to a non zero value, the file will be automatically erased if it
- exists before the file is extracted. If this flag is equal to zero,
- you will be prompted before the file is erased. If you elect not to
- erase the file, the file will not be extracted from the library.
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- AT location 104H in extract is the verbose flag. If this is set
- to zero progress messages will be displayed as EXTRACT is running.
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- This program is free for anybody to use, but it is not for
- resale. There is a trap in the program, if the copyright message
- doesn't match the hidden one, EXTRACT will destroy itself. Just for
- information purposes part of the message is executed during the
- extraction of each file. There is a lot of error checking, so only a
- deliberate changing of the copyright messages will cause this trap.
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- If any problems occur, leave a message under a file named
- "HELP.GIL" and I will try to correct the problems. Note EXTRACT
- signs on with a version number as well as date and time of
- compulation. So when entering problems, include the version,
- revision, date, and time.
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- Enjoy;
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- Gil Shultz