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- U P D A T E
-
-
- Update is a utility which copies the most recent versions of files
- to selected disks or directories. Update consists of the following
- three files: UPDAT.COM, UPDATE.BAT and UPDKILL.BAT. These files should
- be in your default directory or available in a utility directory pointed
- to by a PATH. (e.g. PATH=C: ;C: UTIL)
-
- Suppose that you want to copy the most recent versions of the BASIC
- programs in your current directory to the disk in Drive A:. To do this,
- simply enter "UPDATE *.BAS A:". UPDATE.BAT generates a directory file
- (SRS.DIR) of the BASIC programs in your default directory and a direct-
- ory file (TAR.DIR) of all of the files on the disk in Drive A:. It then
- calls UPDAT to read these directory files, select which files need to be
- copied and generate a batch file (UPD.BAT) to do the actual copying.
- (The last command in UPD.BAT is a call to UPDKILL.BAT which deletes
- UPD.BAT.) UPDATE.BAT then calls UPD.BAT to copy the files and delete
- itself.
-
- Update generates the copy commands in alphabetic order. If you
- want to copy all your local files to a blank disk in drive A:, you sim-
- ply enter "UPDATE *.* A:". Similarly, if you want to do an alphabetic
- copy of the files from Drive A: to Drive B: (assuming no subdirector-
- ies), you enter "UPDATE A: B:".
-
- Update uses the following rules to select files to be copied: (1)
- Files with no file extension are assumed to be directory files and are
- NOT copied; (2) Files with an extension starting with a "~" are assumed
- to be Norton Editor backup files and are NOT copied; (3) Files found in
- the source directory, but not in the target directory, are copied; (4)
- For files found on both the source directory the target directory, the
- creation dates and times are compared and only the newer files are cop-
- ied to the target directory.
-
-
- Harry M. Murphy, Consultant
- 3912 Hilton Avenue, NE
- Albuquerque, NM 87110
- 3 June 1986
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