home *** CD-ROM | disk | FTP | other *** search
- FIND.DOC
-
- March 25, 1990
-
-
- Version 2.11 provides a tremendous gain in performance above
- older versions of FIND, and other file finding programs.
- FIND supports DOS 3.0 and higher.
-
- FIND supports the standard DOS drive, filename and wildcard
- structure, but will not search a specific path.
-
-
- Files:
-
- FIND211.DOC - This file
- FIND211.EXE - Uses intelligent output display
- FIND211.HST - History file of changes to FIND by version
- FIND211.HDR - CompuServe file description header
- SNAPSHOT.EXE - Capture disk sectors for bug reports
-
-
- Enhancements:
-
- o Speed
- o Color
- o Multiple drive search
- o Elapsed time
- o Exclusive hidden file search
- o Standard DOS display format
- o Intelligent output display
- o Support 80x43 and 132x43 screen sizes
- o EMS memory used when available
- o DOS 4 extended disk partition support
- o Dynamic data segment allocation
- o Debugging aid
-
-
-
- Speed:
-
- Version 2.11 is 450% faster than FIND v1.x and 21% faster
- than Whiz when searching for a single file name. FIND
- displays file names as they match the search spec, and will
- slow down in proportion to the number of names that are
- displayed.
-
-
- Screen performance has been improved by utilizing direct
- screen writes. Snow prevention is implemented only when
- the CGA card is detected.
-
-
-
- Color:
-
- FIND utilizes the colors that are found at the current cursor
- position when the program starts. The color preference of the
- user is thus maintained. Directories are displayed in the
- inverse color of the text. If text is white letters on a blue
- background, the directories will be blue text in a white
- background. Subdirectory displays of high intensity colors are
- modified so they do not blink.
-
- The banner colors are mostly low intensity for easy viewing.
- Color selection was based on the best average values for LCD
- laptops, monochrome, and color monitors.
-
-
-
- Multiple Drive Search:
-
- FIND will search multiple drives in ascending order starting
- with the drive specified by the user. If none is specified
- then the first hard disk is assumed.
-
- Note that systems without a hard drive or ram disk MUST
- always specify the drive letter. FIND defaults to the
- first drive after the last installed floppy disk.
-
-
-
- Single Drive Search:
-
- FIND will search a single drive if the /S switch is set.
- This can be user-specified or the default drive.
-
-
-
- Hidden file search:
-
- The /H switch will display only hidden files that match
- the search specification. Hidden files are defined as
- those files with the System or Hidden attribute bits set.
-
- The DOS kernel files, volume label, and other hidden files
- will be displayed.
-
-
-
- Verbose path display:
-
- The /V switch will display all subdirectory paths as they
- are scanned. This may be used to create a listing of all
- the subdirectories on the disk(s). The drive letter and
- path name are displayed on a single line in standard DOS
- format.
-
- This is useful for building a list of all directories on
- the disk(s), or debugging purposes.
-
-
-
- Screen pause:
-
- FIND will automatically pause when the screen is full.
- This may be overridden by using the /N switch when FIND
- is started.
-
- The banner will be scrolled off after the first pause,
- and will no longer be visible. This will allow more files
- to be visible on each subsequent screen.
-
-
-
- Elapsed time:
-
- The total time taken to accomplish the search is displayed
- with the matching files list.
-
-
-
- Standard DOS display format:
-
- The files that match the search parameter are displayed in
- exactly the same format as used by the DOS Dir command.
-
- Appended to the standard DOS display format is the hex
- value of the attribute byte and its meaning.
-
- Display clutter from long path names is eliminated by the
- path name being displayed above the file name(s). All
- matching files in a given subdirectory are displayed under
- the subdirectory name. A new subdirectory name is double
- spaced below the last file name displayed.
-
-
-
- Intelligent output display:
-
- FIND determines if DOS I/O redirection to a disk file or
- printer is active.
-
- When redirection is active, all output is displayed a second
- time using DOS. All screen output except the author banners
- are then output to the redirected device or file.
-
- For the screen, the color attribute found at the starting
- cursor location is used.
-
- FIND automatically uses whichever video page number is
- active at startup. The user video configuration remains
- unchanged.
-
-
-
- Long screen support:
-
- FIND uses the screen mode that is active at startup.
- The 80x43 and 132x43 text screens are supported.
- 40 column mode is not supported. FIND will continue to
- run but all output beyond column 40 will not be seen.
-
-
-
- EMS memory support:
-
- 4 pages of EMS memory, when available, is used for storing
- the directory path table. This reduces the required memory
- by 64k bytes.
-
- FIND identifies the EMMXXXX0 device drive signature then
- allocates EMS memory via DOS interrupt 67h with LIM 3.2
- or higher. The current context mapping is saved at entry
- and is then restored when FIND terminates.
-
- FIND currently supports 512 directories, and an unlimited
- amount of files.
-
- FIND can execute as a child process of a parent that uses
- EMS memory without interfering with the parents' data.
-
-
-
- Extended disk partition support:
-
- FIND supports disk partitions greater than 32mb.
- This feature was introduced in MS-DOS v3.2 and PC-DOS v4.0.
-
-
-
- Dynamic data segment allocation:
-
- Internal data segment sizes are allocated on the fly
- for each logical drive that is searched. Memory is
- allocated in the exact amount required for each drive.
-
- Otherwise, memory would always have to be allocated
- at 262k, the worst case condition.
- Assume no EMS memory and extended disk partitions:
-
- ■ 128k FAT table
- ■ 64k path table
- ■ 64k directory data
- ■ 6k code and stack space
-
- Reducing the minimum memory requirement allows FIND to more
- easily run when a parent program 'shells out to DOS' and still
- remains in memory.
-
-
-
- Debugging Aid:
-
- SNAPSHOT.EXE is a debug aid that captures the first 317k of
- the specified disk boot sectors. The captured data is then
- written to a floppy disk in drive A: as SNAPSHOT.DAT.
-
- When I receive this disk and data, I can reassemble FIND
- in debugging mode and run on the image of your disk.
-
- Caveats: ALL user data within the 1st 317k of the disk will
- be captured. When I receive the SNAPSHOT dump, the user agrees
- to release me from all liability associated with his data.
-
-
-
- PIF:
-
- FIND is 'ill behaved' in screen management functions
- as direct screen writes are used.
-
- FIND is 'ill behaved' for vectors as it takes over 23h,
- the Control-Break vector.
-
-
-
- Usage:
-
- Valid switches are /H, /S, /V:
- /H - hidden file(s)
- Only file attributes that match either the system
- or hidden bits will be displayed.
-
- /S - single drive
- Only a single drive will be searched.
- If not specified, the default drive is assumed.
- Otherwise, the first file specified by the user
- is the only drive searched.
-
- /V - verbose path display
- Every path searched will be displayed.
- Useful to build a complete path table of the
- specified drive(s) by searching for a non-existent
- file. Also useful when FIND is used on a suspected
- incompatible DOS to see if legal paths are being
- searched.
-
-
- FIND *.*
- Start with the default hard drive.
- Find all files.
-
- FIND *.* /H
- Start with the default hard drive.
- Find hidden files only.
-
- FIND *.* /V
- Start with the default hard drive.
- Display all paths as they are scanned.
-
- FIND *.* /H /S
- Start with the default hard drive.
- Find hidden files only.
- Check only the first hard drive.
-
- FIND A:*.*
- Start with the A: drive.
- Find all files.
-
- FIND A:*.* /S
- Start with the A: drive.
- Find all files.
- Check only the A: drive.
-
- FIND *.* /H /S > PRN
- Start with the default hard drive.
- Find hidden files only.
- Check only the first hard drive.
- Redirect output to printer.
-
- FIND *.* /H /S > C:\Temp\Dir.Lst
- Start with the default hard drive.
- Find hidden files only.
- Check only the first hard drive.
- Redirect output to disk file on drive C:
-
-
-
- Technical Data:
-
- FIND uses the BIOS Int 11h installed equipment call to
- check the number of installed floppy disk drives. If
- a switch is set wrong, and this value is corrupted then
- FIND will encounter errors trying to access the non-installed
- drive. Any floppy error causes that floppy to be bypassed.
-
- If the BIOS is set to 4 floppy drives (0..3), FIND will
- assume the first hard drive to be device #4. If the
- system actually has only 2 floppies and a hard disk, FIND
- will exit with no files found, because it starts searching
- at drive #4 which does not exist. Check your switch settings.
-
- FIND uses the DOS direct read interrupt Int25h. The new
- DOS 4 version deviates from earlier versions in the manner
- that this interrupt is implemented. FIND automatically uses
- the extended partition calling convention for DOS 4 and up.
-
- FIND takes over one interrupt vector, Int23h (Control Break).
- The control break allows the user to quit FIND at any point
- during the execution.
-
- The vector is restored upon any exit from the program.
-
- A user entered ^C causes the program to terminate and restore
- the ^C vector at exit.
-
- FIND performs direct reads of the disk and can not damage
- the integrity of the disk. No writes are done to the disk.
-
- There exists a naming conflict with a DOS program of the
- same name. FIND can be renamed to something else if the
- DOS program is regularly used. FIND can also be placed
- in a path that comes before the DOS path.
-
- FIND is written entirely in Turbo Assembler v1.01.
-
-
-
- BUG Reports:
-
- Bug reports are graciously accepted.
-
- 1) Make/Version of DOS
- 2) Copy of AUTOEXEC.BAT and CONFIG.SYS
- 3) Names of TSRs if any, that are loaded
- 4) Redirected copy of FIND in verbose mode.
- e.g. FIND <nonexistent.file> /V > DUMP.FIL
- This provides a list of all subdirectories.
- 5) Use SNAPSHOT to take a dump of the suspect disk.
-
- Attempt to diagnose any bugs by unloading all TSRs and
- start with as simple a system as possible.
-
-
-
-
-
-
- Please send a $10 registration to:
-
- Bruce Gavin
- 4730 Signal Rock Rd
- Colorado Springs CO 80922-1623
-
- CompuServe: 70137,3244