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1991-07-09
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189 lines
BCD Copyright (c) 1991 by George Kerber 05/18/91
--------------------------------------------------------------------------
SHAREWARE SHAREWARE SHAREWARE SHAREWARE SHAREWARE SHAREWARE
--------------------------------------------------------------------------
BCD is SHAREWARE. If you try this program and continue to use it for over
30 days you are required to register your copy and make payment of $5 for
use of the program. Please make payment of $5 to:
George Kerber Aurora, CO 80013
19756 E. Linvale Dr. (303) 693-2890
--------------------------------------------------------------------------
SHAREWARE SHAREWARE SHAREWARE SHAREWARE SHAREWARE SHAREWARE
--------------------------------------------------------------------------
Program: BCD.EXE
Programmer: George Kerber & Randy Carter
Application: MS-DOS 3.0 or higher
Written: 05/07/91 - 05/18/91
Status: Shareware - Requires shareware payment of $5.
Purpose:
--------
A replacement for the MS-DOS CD command. BCD retains almost complete
compatibility with the DOS CD command. BCD retains a history of the previous
9 directories. The user can instantly return to any of the previous 9
directories. BCD can change the drive and directory at the same time.
SYNTAX: BCD [ -d ] [ - ] [ -# ] [ [ drive:]\directory ]
BCD display a list of the previous 9 directories.
-d deletes the current BCD.DAT file.
- returns to the previous directory.
(a history file must exist)
-# changes directory up # of levels.
USAGE:
------
BCD can be used the same as the CD command. Simply enter the desired path as
the argument to BCD. If the directory is valid the current directory will be
changed.
Unlike CD, BCD will change the current drive and the current directory. There
is no longer any need to change the current drive and then the current
directory.
Enter BCD by itself, and a window will display the previous 9 directories.
Press <ESC> to quit. You may select any of the displayed directories by:
1. Press the number of the desired directory.
2. Move the highlight (using the cursor keys) to the desired directory
and press ENTER.
3. Move the highlight (by moving the mouse up or down) to the desired
directory and press the left mouse button. The right button is the
same as pressing ESC.
Use 'BCD -' to return to the previous directory.
Use 'BCD -#' to move up # of levels.
INSTALLATION:
-------------
Copy BCD to any directory in your current PATH so it is always accessible.
ADVANCED INSTALLATION:
----------------------
Advanced users may choose a more transparent installation method by modifying
their COMMAND.COM file.
If the FIXCOM.EXE & FIXCOM.DOC & FIXCD.BAT files are included with this
program, the change is easy to make. After reading the warnings in FIXCOM.DOC,
run the FIXCD.BAT batch file and then reboot. The change will be ineffect
immediately.
--- or ---
Using an editor (that will edit binary files), change the name of the internal
CD command in COMMAND.COM to something else. I suggest changing it to DD,
since this is not used anywhere else in the file. Rename BCD.EXE to CD.EXE
and copy it to a directory that is in your current PATH.
The internal CD command will still be usable (but why?), by using the new
name. But the BCD command will now be used whenever CD is entered at the DOS
prompt.
EXAMPLES: Assume the current directory is c:\
C:> BCD c:\source\bcd # change directory
C:\SOURCE\BCD> BCD a:\data # change directory & drive
A:\DATA> BCD - # change to previous directory
C:\SOURCE\BCD> BCD data\storage\temp
C:\SOURCE\BCD\DATA\STORAGE\TEMP> BCD -3 # move up 3 levels
C:\SOURCE\BCD> BCD \ # change to root of current drive
C:> BCD # enter BCD w/o options
A window will be displayed on the screen showing the previous
9 directories visited. Note that only 4 are shown--the history
file has not been built up to 9. Duplicates are removed.
+-----------------------------------------+
| BetterCD v1.00k |
+-----------------------------------------+
| 1. C:\ |
| 2. C:\SOURCE\BCD |
| 3. C:\SOURCE\BCD\DATA\STORAGE\TEMP |
| 4. A:\DATA |
+-----------------------------------------+
| Select a directory by number |
| or <ENTER> to quit |
+-----------------------------------------+
You may select a listed directory or press ENTER to quit.
STORAGE:
--------
The previous directories are stored in a file named C:\BCD.DAT. This is a
hidden/read_only file located in the root directory of your C: drive. Since
the previous directories are stored in a file, the history is always available,
even if the computer has been rebooted. Do not edit this file, the format is
very important.
You can change the drive the data file is stored on by setting an environmental
variable. For example, to use the D: drive, instead of the default C: drive:
c:> set CD=D
If the default drive is changed, the SET command should be added to your
AUTOEXEC.BAT file. Normally, there is no need to change the default drive.
CAVEATS:
--------
There are a few areas where the CD & BCD commands are incompatible. CD will
accept a .. or \ as its argument with no space between the program name and
the argument. BCD will not work this way.
Okay -> CD\ Not Okay -> BCD\ Okay -> BCD \
If you've installed BCD as CD.EXE (described above), some of your existing
batch files may not work if they use CD and a .. or \ as shown above. The
batch files will need to be modified, adding the space between the CD
command the the .. or \.
BCD may not know what the previous directories are if you ever change
directories using the old CD command or change drives in the old manner.
To insure a complete history, always use BCD when changing directories or
drives.
CREDIT:
-------
This program is a total re-write of a program called CDX.EXE. CDX was written
by my good friend Randy Carter. CDX worked similar to BCD, without the display
window and was slower. Randy did the hard work, determining how the program
should work. All shareware payments will be shared equally with Randy.
STATUS:
-------
BCD is SHAREWARE. You have permission to use this program for a period of 30
days. After 30 days you must send the author $5 for the use of the program and
to register your copy or discontinue use. Contact the author for information
on site licensing. I assume no responsibility for the use of this program or
its operation. (I hate responsibility)
George Kerber Aurora, CO 80013
19756 E. Linvale Dr. (303) 693-2890