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- bzip - backup files and directories to diskdrive using pkzip
- rzip - restore zipfiles split by bzip
-
- ------------------------------------------------------------------------
-
- DESCRIPTION
-
- BZIP is a little utility that uses (PK)ZIP (not included) to compress
- files or complete directories and then copies the created zipfile(s) to
- drive A: or B:, splitting the file if necessary. Of course, this will
- save you backup disks but it is considerably slower than a direct copy.
-
- BZIP is functionally similar to the combination PKZIP, BACKUP and some
- kind of control over these programs (e.g., a batch file).
-
- Advantages of BZIP over such a combination are:
- - BZIP calls you only when really necessary
- - you can access the stored zipfiles directly
-
- Caveats:
- - you need enough space on some drive or partition to create the largest
- zipfile.
-
- RZIP concatenates the parts of a zipfile that were split by BZIP over 2
- or more disks. There is no other support for restoring backups. But you
- do not need to do more than calling PKUNZIP -d to restore each directory.
- BZIP writes a table of contents on the last backup disk, which you can
- use to find particular zipfiles.
-
- Turbo-C Sources included. No warranty. Public domain.
-
- ------------------------------------------------------------------------
-
- Usage:
-
- bzip [no arguments]
- - creates a zipfile for each directory in the current directory
- and copies it to drive A.
- - creates one zipfile, called ROOT.ZIP, that contains all the files
- in the current directory and copies it to drive A
-
- bzip B:
- - as above, but copy to drive B:
-
- bzip -d <directoryname>
- - as above, but use directoryname to create temporary zipfiles.
- This should not be the backupdrive!
-
- bzip [name ...]
- - create a zipfile for each name (usually a directory)
- and copy it to the backup disk.
-
-
- rzip drive:name
- - restore a zipfile (in the current directory) from the named drive.
-
- Zipfiles are named by stripping off the extension of the original
- directory name (if any) and adding the extension .ZIP
-
- If a zipfile is split, the parts on the backup disks get the extension
- .p[number]. The last part gets the extension .-[number]. RZIP recognises these
- extensions.
-
- In order to restore a directory use PKUZIP -d zipname. The -d option
- lets PKUNZIP create the directory names stored in the zipfile
-
- ------------------------------------------------------------------------
-
- INSTALLATION
-
- Put BZIP.EXE and RZIP.BAT and PKZIP.EXE somewhere where DOS can find
- it.
-
- Depending on your operating system, set the COMPSPEC environment
- variable to the full path and name of COMMAND.COM. Normally this is
- already done. Consult your DOS manual if necessary.
-
- If you have ZIP.EXE instead of PKZIP.EXE, create a batch file PKZIP.BAT
- that contains the following line:
-
- ZIP %1 %2 %3 %4 %5 %6 %7 %8 %9
-
- BZIP allows you to format disks when a new disk is needed. BZIP calls
- the standard dos utility FORMAT.COM to do this. It gives the name of
- the backup drive as an argument. If you prefer another format utility,
- you may be able to create a batch file FORMAT.BAT that contains the
- line:
-
- NEWFORMATCOMMAND %1 plus any other options
-
- ------------------------------------------------------------------------
-
- WARNINGS:
-
- - when you use bzip to backup your harddisk, be sure that you make a copy
- of RZIP.BAT, BZIP.EXE and PKUNZIP.EXE on a separate disk, so that
- you can restore your backup when your harddisk crashes.
-
- - make sure you do not have any existing files named <name>.zip where
- <name> is also the name of a directory you want to backup. PKZIP will
- overwrite the existing file.
-
- - no attempt is made to repair disk errors. You just have to start again.
-
- - bzip deletes anything on the backup disks
-
- - although this utility functions well on my system, which is pretty
- standard, it has not been tested on any other system. You must consider
- this to have the status of a beta-release. Please try it out and also
- try to restore some directories before you trust your valuable information
- to it.
-
-
-