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-
- ------------------------------------------------------------------------
-
- This file contains the basic usage syntax for CRUNCH and UNCRunch pro-
- rams, along with a brief description of what the various modes are.
- Many additional operational details are contained in the NOTES24.DOC
- file, especially details relating to features new to v2.4 vs. v2.3.
-
- Information pertaining to exact locations of "patch bytes", which allow
- you to tailor the programs to your own preferences, are contained in a
- separate file PATCH24.DOC.
-
- ------------------------------------------------------------------------
-
- CRUNCH v2.4 Usage:
-
- Filename Date, etc. Option letters
- / / /
- CRUNCH {du:}<afn> {du:} { [id] } { /<options> }
- \ \ |
- Source Destination (space)
-
- where <options> = {Q}{C}{O}{A}
-
- Items in curly brackets are optional (namely everything except for the
- filename). The two optional 'du:' specs may be of the form DU:, UD:, D:
- or U: where 'D' is any legal drive letter and 'U' is a user-code from
- 0-15, inclusive. The colon MUST be typed. The first 'du:' specifies
- where the filename '<afn>' is located, and it should immediately precede
- the <afn> with no intervening blanks if it is used . If no drive is
- specified, the default (currently logged) drive is assumed. The same
- is true for the user code. The filename <afn> may contain the ambiguous
- (wildcard) characters '?' or '*' if desired.
-
- The second 'du:', which has the same form as the one described above, is
- an optional drive specifier where the output will be directed. No file-
- name may follow the the second 'du:' - the filename will be generated
- automatically (see below). As above, if either part of the 'du:' speci-
- fication is not included (or if the specification is left out alto-
- gether), appropriate defaults will be used. The resulting file will
- have the same name as the crunched file, except that the middle letter
- of the extension will be converted to "Z". If the original file's ex-
- tension was blank or already had a "Z" in the middle, then a filetype
- of "ZZZ" will be used.
-
- [id] is an optional "date stamp" (or other information), used to iden-
- tify the file. If used, [id] consists of any text contained between a
- pair of square brackets i.e., the brackets must actually be typed. The
- text contained in [id] will be recreated at the console for the opera-
- tor's reference when the file is later uncrunched.
-
- Four command line options, "Q", "C", "O" and "A", are available. They
- may be used in any combination and in any order, but must be preceded by
- a single slash and there should be no intervening blanks between option
- letters. The "/" itself must be preceded by a blank. For example:
-
- CRUNCH *.DOC B0: /CQ
-
- is a valid command line.
- The letters have the following significance:
-
- Q Quiet mode toggle
- C Confirm (tag) mode toggle
- O Overwrite without prompt mode toggle
- A Archive bit mode toggle
-
- The "standard distribution" copy of CRUNCH is shipped with all four of
- the above modes "off". The command line option will activate the assoc-
- iated mode. It should be noted that patch bytes in the .COM file allow
- a copy of CRUNCH to be configured to default to an user's own preference
- (see PATCH24.DOC). If a mode is configured to default to the "on" state
- then an occurrence of the associated letter in the command line will
- flip the option back off.
-
- For example, some users may prefer that CRUNCH generally perform over-
- writes without always prompting. In a certain situation where the user
- wanted to be extra-careful, however, he could temporarily reinstate the
- prompt by specifying the /O option.
-
-
- Following is a brief statement of what each mode does when active:
-
- QUIET MODE: Simply suppresses the continuous console output normally
- supplied by the program while it is processing a file. May be desirable
- if your console is slow, auto-adds LF after CR, is a printing device or
- if you just plain don't like watching this kind of activity.
-
- OVERWRITE WITHOUT PROMPT MODE: Suppresses the question "Destination
- File exists, overwrite?" from being issued everytime the program is
- about to overwrite an old file with the same name as the new one.
- "Safer" to leave this mode in the default "off" state, but really a
- matter of personal preference. Off-state can hinder "unattended" mass
- perations, however, since processing may occasionally be suspended pend-
- ing an operator response.
-
- TAG MODE: An enhanced method for selectively processing certain files
- from a wildcard group. Though vastly more limited, it is obviously
- modeled after the SWEEP/NSWP type "tagging" concept, so many users will
- feel comfortable with it immediately. All specified files are displayed
- one at a time in alphabetical order. Only "tag", "untag", "next file"
- and "back one file" functions are supported. After all proper files
- have been tagged, the mass operation commences without further user in-
- tervention. See NOTES24.DOC for some some additional notes on this mode.
-
- ARCHIVE BIT MODE: Allows CRUNCH to be used as an archival type simple
- backup program. Like other "incremental" backup programs, in this mode
- CRUNCH will only process files which have been changed since the last
- backup, based on the CP/M "archive" directory attribute. After each
- file is processed, the bit will be set indicating the file is now backed
- up. See NOTES24.DZC for some additional notes about this mode as well.
- NOTE: While all other modes and command line options are common to
- UNCRunch and CRUNCH, this one is implemented in CRUNCH only.
- UNCR v2.4
- Usage:
-
- Filename (space)
- / |
- UNCR {du:}<afn> {du:} { /<options> }
- \ \ \
- Source Destination Option letters
-
- where <options> = {Q}{C}{O}
-
- All usage, options, and patches are identical to CRUNCH, described
- above, except that no [id] can be specified and the /A mode is not im-
- plemented. Also note that the the resulting filename will be recreated
- from the name of the file that was originally crunched.
-
-
- end