C2DD 1.0 Change to Drive/Directory and Back Copyright (c) 1995 by David M. Wincelberg Table of Contents I. Introduction ............................................ 1 II. How to Use .............................................. 1 Appendices: A. Command Line Switches ................................... 3 B. Troubleshooting ......................................... 4 C. Other FileJockey Software Products ...................... 4 D. License Agreement ....................................... 6 I. Introduction Thank you for trying C2DD. This program changes the current drive/directory to a specified pair and records path information for moving back to any of several previous drive/directories. It can move back one pair at a time or present a graphical pick list. C2DD can be used with any DOS directory navigator and is useful for returning to the starting drive/directory in batch (.BAT) files. C2DD is a free program. Please consider the FileJockey Software shareware products described in Appendix C. This program is safe to run on a Pentium processor since it does not perform any floating point divisions of large numbers. In addition, FileJockey Software does not release products with known bugs. Please send comments, suggestions and problem reports to me at 71573,1023 by CompuServe e-mail or 71573.1023@compuserve.com by Internet e-mail. C2DD requires DOS 2.1 or later and a hard disk labeled C:. II. How to Use II.A. Installing onto Disk Make a temporary directory such as C:\C2DD and unzip C2DD.ZIP into this directory. Then move C2DD.EXE to a directory on your path such as C:\UTIL and move C2DD.TXT and C2DD.ZIP to a documentation directory such as C:\UTIL\DOCS. After reviewing the other files, you may delete them and remove the temporary directory. II.B. Using the Program as C2DD Once C2DD.EXE is in a directory on your path, enter C2DD [drive:]directory to change the current drive/directory to the pair specified on the command line. Unlike DOS CD, the current drive is changed if a different one is included in the command. The primary benefit of using C2DD is that C2DD/B results in the current drive/directory being changed to the previous one. Consider the following batch (.BAT) program: C2DD C:\WP60 WP %1 %2 C2DD /B In this program, the current drive/directory is changed to a program directory, the program is run and the current drive/ directory is reset to the starting pair. With this type of batch program, programs that need to be run from a specified directory can do so and then the user can resume work in the previous directory. (Note that WordPerfect for DOS does not necessarily need to run from its directory and that the parameters %1 and %2 cannot refer to files in the previous drive/directory.) C2DD can also call another program to do the drive/directory changing and can present a graphical pick list containing the last several (up to 23) drive/directories C2DD changed to. See Appendix A for more information. II.C. Using the Program as CD To use C2DD as CD, you need to install a DOS-command-history program such as DOSKEY (DOS 5.0 or later) or CED and define a macro or synonym that substitutes C2DD for CD. For DOSKEY, the command is: DOSKEY CD=C2DD $* For CED, the command is: CED SYN CD C2DD %1 %2 To remove this substitution, enter: Page 2 DOSKEY CD= or: CED CLEAR SYN CD respectively. Note that you cannot use macros or substitutions in a batch (.BAT) program. Neither command-history program appears to have an option to remove itself from memory. If you do use a DOS-command-history program, you can save disk space by making small batch programs into macros or synonyms. For example, the above program becomes: DOSKEY WP=C2DD C:\WP60 $T WP $* $T C2DD/B or: CED SYN WP C2DD C:\WP60 ^ WP %1 %2 ^ C2DD/B Doing so saves more than just the space shown in the DOS directory since files use an whole number of clusters where each cluster could be from 2 to 32 kilobytes in size, depending on the size of the current disk partition. (See PC/Computing, June 1995, p. 196.) Appendices A. Command Line Switches Entering C2DD /? produces the following summary of command line switches or options: Usage: C2DD [/C:prog] {path | /A | /B | /S} path Change to this drive and directory; store current path /C:prog Use 'prog' to switch to 'path' /A Add current path to the data file /B Move back to the previous drive/directory /S Select a previous drive/directory from a list The /C option allows you to use another program to switch the current drive/directory to a desired pair. The advantage of doing so is that directory-navigator programs such as NCD and DM allow you to enter just the first few letters of a directory name. In contrast, C2DD requires path names in the form that DOS Page 3 uses -- full or relative with the complete names written out. Alternatively, you could use a directory-navigator program as you currently do and then enter C2DD/A to add the current drive/ directory to C2DD's retrace file (C:\C2DD.DAT). The /B option changes the current drive/directory to the previous one in the retrace file. Entering C2DD/B when this file points to the last one on the list results in the program selecting the first pair on the list. Finally, the C2DD/S displays a graphical pick list on the screen. Navigate through this list by using up and down arrow keys as well as the and keys. Press to select a pair or to cancel. B. Troubleshooting Error in header of C:\C2DD.DAT: The header line of C:\C2DD.DAT consists of the number of drive/ directories stored in the file (up to 23) and the index of the current one for moving back one pair at a time. If this file is edited, make sure that the numbers on the first line are accurate and separated by a space. The second number may be set to 1. Alternatively, you may delete C:\C2DD.DAT if you don't mind losing its drive/directory information. C. Other FileJockey Software Products Following is a list of current FileJockey Software products. All of the compressed files for these products have extension ZIP. In parentheses after the descriptions are the locations where the programs may be found on CompuServe and the registration/license fees. C.1. System Tools WRDGRB 1.1 -- Copies Words From DOS Screen to Command Line: No more typing words you see on the DOS screen! With WRDGRB installed, you simply press the hot-key sequence, highlight text with your mouse, and left click to copy it to the command line (or right click to cancel). WRDGRB even connects a filename to its extension when both are highlighted in a directory listing. New: smaller by 19K, a default-values file, and more. 23K TSR. No known bugs. GO SWREG (#5571) to register on-line. (GO PCUTIL, Library 3, $35) Page 4 LISTRS 1.2 -- Directory/Program List Makers With Action Options: DIRLIST: More accurate than "dir *." Options include show files, change to and remove directory. PROGLIST: Shows a directory's .EXE, .COM and .BAT files in one listing to help users find the name of the program file to run. Options include type & run, type & wait and edit .BAT files with a user-selected editor. Both programs correctly sort numbers within filenames. No known bugs. (GO PCUTIL, Library 5, $15) C.2. Programmer Tools SRLIB 1.1 -- LIB: Alphanumeric Filename Sorting: SRLIB is a set of library routines to sort filenames alphanumerically. For example, it places FILE_2 before FILE_10 and can handle long file names, leading zeros and spaces. SRLIB is compiled for Microsoft C/C++'s and Borland TC++'s small and large memory models. (See SRDEMO in MSLANG, Lib. 3.) New: case- insensitive routine, 3rd space-handling option, commas-within- numbers handling, and more. SRDEMO.C, included in SRLIB.ZIP, reads a directory once even for an unknown number of files. GO SWREG (#5947) to purchase SRLIB on-line. Site licenses and source code are available. No known bugs. ($24 plus $1 S/H (by e-mail) or $24 plus CA tax plus $4 S/H (by disk)) PROGCR 1.0 -- Prepares Programs for Copyrighting: Protects the privacy of your C/C++ or PASCAL source code copyright deposit by removing comments after each file's header (which should primarily consist of your copyright notice) from copies of the original files. Also, copies words displayed by standard or user-specified print commands to a file for spell checking. (GO PCPROG, Library 6, $10) C.3. BBS-Session Tools CFWRAP 1.1 -- Word Wrapping Tuned for BBS Capture Files: Prepares BBS capture files for editing by removing page pause lines ("Press for more !", etc.) and word-wrapping various types of paragraphs (including each line starting with ">>" and indented paragraphs). Many page pause lines are in a user- changeable .INI file. Version 1.1 improvements include multi-BBS support and better word wrapping. (GO PCCOM, Library 2, $15) Page 5 FRMDSK 1.0 -- Enters Text From Disk With Line Preview & Edit: Use FRMDSK when a BBS requires you to type in lines instead of allowing you to upload a file. It copies lines from a file to your BBS software (or other program) after giving you options. These options include edit line, finish file, wait, cancel, next/previous line and another file. Works only with DOS text programs that read the keyboard in the standard way. 66K TSR. (GO PCCOM, Library 2, $15) D. License Agreement This is a legal agreement between you ("Licensee") and FileJockey Software ("Licensor"). Licensor owns all worldwide rights, title, copyright and other interests in and to the computer program identified as C2DD 1.0 ("Software"). By using the Software, you are agreeing to be bound by the following terms: 1. Licensor grants to Licensee the non-exclusive and non- assignable right to use the Software without paying a fee to Licensor. 2. Licensee may distribute copies of the Software and related files to others provided Licensee informs the recipients that the Software is subject to a license agreement. The attached VENDINFO data record is hereby incorporated by reference. Any distribution satisfying all the distribution requirements expressed in that data record is hereby authorized. 3. Licensor hereby alerts Licensee that the Software and accompanying documentation are provided "AS IS" without warranty of any kind. Licensee assumes all risks involving use of the Software and its results and performance. 4. Licensee hereby acknowledges that Licensor bears no responsibility or liability which may arise or result from Licensee's use of the Software. Licensee hereby waives and releases Licensor from any and all claims for damages, losses and costs therefrom. In no event shall Licensor's liability for any damages ever exceed the price paid for license and registration, regardless of the form of the claim. 5. This license agreement shall be construed and enforced in accordance with the laws of the State of California. This agreement may not be modified except by written instrument signed by both parties. If any provisions of this agreement are found to be invalid or unenforceable by the operation of the law, then invalidity or unenforceability of such provision(s) shall not affect the validity or enforceability of the other provisions of this agreement. Any dispute arising from this agreement shall be Page 6 submitted to California courts located in Los Angeles County, and Licensee hereby submits to the jurisdiction of such courts. All (registered) trademarks and (registered) service marks are properties of their respective companies. Page 7