PC Open 12

home *** CD-ROM | disk | FTP | other *** search

/ PC Open 12 / pcopen12.iso / MsDos / Dirsize / DIRSIZE.TXT < prev next >

Wrap

Text File | 1997-04-05 | 23.4 KB | 552 lines

DIRSIZE v2.9 ============ Copyright 1993-1997 Simon A Carter The Directory Size/Wastage Lister with the Lot: * Summary statistics for multi-level directories. This is very useful for finding the complete size of applications before deletion or backup. * Displays Windows 95 long filenames. * Supports international thousands separators. * The directories to be displayed can be limited by their size or depth; very useful for eliminating unnecessary detail. * For the selected drive, displays actual cluster size, free space, used space and capacity. * For each directory tree specified, displays cluster size (user- selectable), total space used and wastage (as a percentage or as a total). * For each directory displayed, shows total space, wasted space (as a percentage or as a total), and if it has subdirectories, the total space used by the directory and all of its subdirectories. * Shows wasted space for a given cluster size - optimise your cluster size before repartitioning your hard disk. * Rounds up file sizes to the cluster size for the most accurate size information. * Size/wastage information includes the size of directories themselves. * Paginates output, [Enter] for next line, [Esc] to exit and any other key for next page. Disabled automatically if output is redirected. * Output can be redirected to a file or to the printer or into another program. * The characters used to draw the directory tree can be changed from DOS extended ASCII characters to standard ASCII characters for other operating systems. * Comma-delimited and tab-delimited output formats for easy importing into databases, spreadsheets or word processors for further analysis or specialised printing. * Directory sorting can be disabled. * Future proof - directory sizes up to 99 GB are catered for. * Progress indicator as it accumulates file information. DirSize is SHAREWARE, and may be trialed for 30 days. You must register DirSize if you find it useful and plan to continue using it. Please see the end of this file for more information. What will DirSize do for me ? ============================= DirSize shows a graphical tree of the directories on your hard disk. The tree starts from the current directory, or from a directory or directories that you specify. The left column displays the total disk space used by each directory. Directories that contain further sub-directories display summary statistics in square brackets after the directory name. This is very useful for determining the complete size of an application, for example, if you were hunting for an application to remove to make way for a new one. Alternatively, DirSize can be used to find the total size of an application before a backup or copy is made. DirSize automatically detects and displays Windows 95 long filenames. Of course, it will still run under any older version of DOS. Installation ============ Just copy DIRSIZE.EXE to a directory in your path, for example, to C:\DOS. To find out the directories in your path, type c:\> path [Enter] How to use DirSize ================== Typing dirsize -? [Enter] on its own will display usage information. Usage: dirsize [options] Where [options] is one or more of: <directory> Default: Current path One or more directories can be specified as the starting point for DirSize's output. For a DirSize of drives a:, b: and the current directory (c:\windows) type: c:\windows> dirsize a:\ b:\ . Directory names with special characters such as spaces must be entered with double quotes e.g. c:\> dirsize "Program Files" "windows\start menu" [Enter] You can perform multiple DirSize command in a single run e.g. c:\> dirsize -1 c:\ -0 d:\ -nosort Do not sort directory names into alphabetical order (the default). This may be useful if you are comparing DirSize's output to an unsorted listing from the DOS DIR command. -p Do not paginate the output. Pagination pauses after each screenful of output. [Enter] shows the next line, [Esc] exits, [End] scrolls continuously to the end of the output, and any other key shows the next screen full of output. Pagination is automatically disabled when the output is redirected. -size=# Only show directories that use # space or larger. A K, M or G suffix can be used to express the value in KBytes (1024 bytes), MBytes (1024 KBytes) or GBytes (1024 Mbytes). This is very useful for finding network space hogs, or for eliminating small directories that are of no consequence from the display. -cl=# Show how much disk space would be wasted if the cluster size was set to # bytes per cluster. # is restricted by DOS to powers of two, but for convenience DirSize allows it to be set to any value. This is useful for previewing the result of a change in cluster size on a set of files. In general, the smaller the cluster size, the smaller the wasted space. As for -size=# above, a K, M or G suffix can be used. -dir Give the same results as a DIR - excluding all wastage information. -# Default: All levels (255) Limits the number of levels of directories displayed to the given value. Eg -1 will only show the first directory level. The statistics will include all levels, but they will not be displayed. This is very useful if you just need to find out how much total space is in use by an application without caring how it is divided into sub-directories. A value of 0 is equivalent to a value of 255 (i.e. all levels). -comma Print the result in a comma-delimited output format suitable for importing into a spreadsheet, database or word processor. -tab Same as -comma above but outputs in tab-delimited format. -nowaste Do not show wasted space for each directory. The wasted space is still included in the totals - it is just not shown as a display column. -asval Show the actual wasted space per directory rather than as a percentage of the directory's used space. -c<+|-> Control which characters to use for drawing lines. + Uses DOS's graphical line drawing characters even if it detects that its output is being redirected. - Uses portable text line drawing characters even if it detects that its output is not being redirected. This is useful if the result is going to be used on another computer, for example, on a Unix machine or a Macintosh. Note: When DirSize detects that its output is being redirected, it automatically turns off pagination, and selects portable characters to draw lines, such as +, - and |. It does this because the output may be sent to a device or another computer that does not understand DOS's line drawing characters (which are non-portable). When DirSize's output goes to the screen, it uses the DOS line drawing characters. You can override the default behaviour in either case using the -c option DirSize Environment Variable ---------------------------- If you regularly use the same settings for DirSize, you can set them in the environment variable DirSize. This variable is processed before command line options, so anything specified on the command line will override it. e.g. SET DIRSIZE=-nowaste -c- -nosort Some of DirSize's command line options require an equals sign. In order to use these in an environment variable, change the equal sign (=) to a colon (:) eg -cl=# becomes -cl:#. Redirecting Output ------------------ DirSize's output can be redirected to any device. For example, to save DirSize's output to the file output.txt, you can type: dirsize > output.txt [Enter] To add DirSize output to an existing file exists.txt, type dirsize >> exists.txt [Enter] To send DirSize's output to the printer, type dirsize > prn [Enter] DirSize Example --------------- The output below was generated from running DirSize in the Program Files directory (in a DOS shell under Windows 95). All directories smaller than 2 MB have been removed from display: c:\> dirsize -size=2M "Program Files" [Enter] DirSize v2.9 Copyright (c) 1993-1997 Simon Carter Total space Wstd Directory name [dir + subdirs total] -------------- ---- ---------------------------------------------- 32,768 97% C:\Program files [253,329,408] 32,768 99% |--Borland [98,500,608] 32,768 99% | |--Common Files [4,358,144] 4,325,376 10% | | +--Bde 4,096,000 6% | |--Database Desktop 229,376 37% | +--Delphi 2.0 [90,013,696] 9,207,808 9% | |--Bin [9,699,328] 32,768 98% | |--Demos [18,710,528] 5,898,240 35% | | |--Data 32,768 98% | | |--Db [4,292,608] 32,768 98% | | +--Doc [3,735,552] 30,670,848 2% | |--Help [32,833,536] 2,162,688 6% | | +--Tools 32,768 99% | |--Images [8,355,840] 5,341,184 98% | | +--Buttons 9,863,168 58% | |--Lib 1,212,416 96% | |--Objrepos [2,097,152] 2,293,760 2% | |--Quickrpt 557,056 58% | +--Source [3,112,960] 32,768 99% |--Common Files [16,547,840] 32,768 98% | +--Microsoft Shared [16,515,072] 2,293,760 4% | |--Msgraph5 2,883,584 6% | +--Proof 3,047,424 38% |--Games 5,275,648 17% |--Jobint 6,684,672 19% |--Norton AntiVirus [7,274,496] 2,326,528 7% |--Norton Commander [2,359,296] 9,011,200 9% |--Norton Utilities [15,007,744] 5,996,544 19% | +--System 11,370,496 3% |--Painter3 [15,826,944] 753,664 17% |--Plus! [2,457,600] 5,603,328 14% |--Resumew [10,027,008] 3,342,336 67% | +--Resumes 2,162,688 32% |--VendInfo 4,194,304 3% |--Visio [21,200,896] 2,752,512 14% | |--Add-ons 3,244,032 5% | |--Help 32,768 99% | |--Stencils [4,882,432] 4,849,664 10% | | +--Standard 163,840 52% | +--System [4,751,360] 2,162,688 23% | +--Filter32 6,717,440 9% |--Web3d [37,715,968] 1,245,184 4% | |--Catalog [19,496,960] 1,441,792 60% | | |--Backdrop [3,407,872] 6,684,672 14% | | |--Model 2,752,512 53% | | +--Surface [4,554,752] 32,768 99% | |--Samples [3,407,872] 2,654,208 7% | | +--Stylebmp 491,520 7% | +--Webstyle [7,995,392] 884,736 56% | +--Surface [3,538,944] 2,555,904 8% +--Winres -------------- ---- ---------------------------------------------- 253,329,408 25% Cluster size: 32,768 Wastage: 64,893,638 -------------- ---- ---------------------------------------------- Drive C: statistics: Cluster size: 32,768 bytes Free space: 26,247,168 bytes (2% of capacity is free) Used space: 1,061,486,592 bytes Capacity: 1,087,733,760 bytes Note how all sizes shown (except the wasted space) are integral (whole) multiples of the drive's cluster size. What is the "Cluster Size" ? ============================ When your computer places files on a disk (both hard disks and floppy disks), it must use an integral number of allocation units. The size of the allocation units varies depending on the total capacity of the disk. This means that if a file is smaller than one complete allocation unit, it does not fill the entire allocation unit. For example, lets say we have a file that is 300 bytes long. On a floppy disk with an allocation unit of 512 bytes, the file will only occupy the first 300 bytes, but since one entire allocation unit must be used, the remaining 212 bytes are wasted. A file 513 bytes long will occupy 2 allocation units, with 511 bytes wasted. An allocation unit is called a CLUSTER. Floppy drives typically use a cluster size of 512 bytes or 1,024 bytes, so not much space is wasted. Hard disks range from 2,048 bytes (for a 106 MB drive) to 32,768 bytes (for a 1.04 GB drive) and even 65,535 bytes, which means that a great deal of space is wasted. The cluster size gets bigger with bigger disks for two reasons: 1) A DOS limitation that sets an absolute upper maximum on the total number of clusters on a drive (65535). 2) The overhead of managing a large number of clusters consumes a lot of disk space that cannot be used for anything else. The DOS DIR command always shows you the size actually in use by the file - it does not include the extra 'wasted' space at the end of the cluster. This wasted space is sometimes referred to as 'slack' space. Directories use up clusters too ------------------------------- DirSize takes into account the amount of disk space used to store the entries within each directory. Normal file, directory and volume label entries take up 32 bytes each. Long filename entries can consume between 1 and 32 additional directory entries (each of 32 bytes). Even empty directories use a minimum of one cluster - for the current directory "." and the parent directory ".." entries. The root directory always consumes a fixed and pre-determined amount of disk space which cannot be reclaimed, and DirSize excludes the number of entries in the root directory from its calculations. DirSize does not take into account the size of entries that are no longer being used. This means that a directory that has had many files deleted may display a size lower than that actually in use. DOS never reclaims this extra space unless you delete the directory. To reduce the amount of disk space used by directories, remove directories that do not contain any files. Also, if you delete a large number of files from one directory (particularly directories containing long filenames), move the files to a new directory, remove the old one and then rename the new directory to the original name. Lost clusters ------------- Clusters can become orphaned when DOS is unable to complete changes to the disk, for example, when you are forced to reboot your machine or when the power is turned off accidentally. These clusters cannot be used until they are identified and reclaimed. Use the DOS CHKDSK or SCANDISK command to reclaim lost clusters. Lost clusters are considered to be used. Reducing wasted space ===================== What about Disk Compression ? ----------------------------- Disk compression programs like Stacker and DoubleSpace are able to make use of the wasted space because they take on the responsibility of storing the files themselves. By doing so, they overcome DOS's integral cluster size limitation. DirSize's space wasted information may be invalid on volumes controlled by these programs, and on some later versions of file servers. What about archives ? --------------------- Storing collections of files in a compressed or uncompressed archive saves space, because by grouping all of the files into one large file, only a small amount of space is wasted. The archive program uses its own format to store the files without wasting space. Partitions - decreasing the cluster size ---------------------------------------- Partitions subdivide a physical disk drive into a number of logical drives. For example, a 500 MB hard disk could be partitioned into two 250MB partitions, C: and D:. The advantage of doing this is that the cluster size can be smaller, and in general, the amount of wasted space will be smaller. The disadvantage is that it takes time to set up (since you have to move ALL of your data off the hard disk in order to partition it, unless you have a program that can re-partition on the fly), and you have to remember which drive your programs are on, and manage space across two drives instead of one. For more information on partitions, see the DOS FDISK command. New features/Revision history ============================= Date Version Changes Made 7-Mar-97 2.9 Added international thousands separator character support. Added support for file/directory sizes larger than 2 GB. 24-Feb-97 2.8 Added welcome and information screen. Minor formatting change. Removed % display shown since inaccurate. Fixed screen scrolling. Even faster! 21-Feb-97 2.7 Added ability to limit the directories shown based on the amount of space they use. Added DirSize environment variable. Added option to totally ignore wasted space to give the same totals as a DOS DIR command. Changed command line options to have a - prefix instead of / 14-Oct-96 2.6 Added wastage percentage/value to display. Changed display format. Added wastage information for each directory. Increased speed (again). Added comma-delimited and tab-delimited database output formats. Added the actual size of the entries in each directory to the total size count. Added ability to limit directory depth and to specify multiple directories with separate parameters for each. 24-Jun-96 2.5 Reduced stack usage further. Added /nosort, /size=# and /p option. Added automatic pagination. Fixed bug for paths longer than 68 characters. Re-instated stack checking. 13-Jun-96 2.4 Increased stack limit to 64K, and reduced stack usage. This means that you can list directories that are much deeper than before. Appreciably faster (11 seconds compared to 14 for a complete display of a 1.1 GB drive). Now only shows usage information if /?, ? or -h given as first parameter. Email and address changes. 27-May-96 2.3 Documentation update. 8-May-96 2.2 Shows usage information if no parameters are provided. Fixed bug in long filename functions that prevented them from working under some circumstances. Fixed bug in file size rounding up function, which made files that were an integral number of clusters long one extra cluster long. Documentation update. 28-Apr-96 2.1 First release. 3-Jul-93 1.0 First created and used. Registration ============ Online Web Registration - Single User Version --------------------------------------------- The registered version of DirSize can be purchased and received immediately on the Internet for $5 at AlbertÆs Ambry. Registration at AlbertÆs also eliminates shipping and currency conversion costs. Please go to: http://www.alberts.com/ Search for: dirsize Click on the "Buy it" link to register DirSize. Order Form - All Versions ------------------------- ____ x Single user licence(s) at $5 each: $______ ____ x Server licence(s) at $50 each: $______ ____ x Site licence(s) at $100 each: $______ ____ x Company licence(s) at $200 each: $______ Postage and 3.5" diskette $10 OR OR Deliver to your email address $5 Total: $_______ Personal details ---------------- Name: ____________________________________________ Email: ____________________________________________ Company: ____________________________________________ Address: ____________________________________________ ____________________________________________ ____________________________________________ ____________________________________________ Phone: ____________________________________________ Fax: ____________________________________________ For Visa, MasterCard or Bank Card (*) ------------------------------------- (Sorry, I currently do not accept American Express) Card Number: ____ ____ ____ ____ Expiry Date: ____/______ Signature: ________________________________ Date: ____________ (*) Please note that these orders are processed by Omnivision Technologies, a licensed distributor. Cheques ------- I accept bank cheques and personal cheques drawn on an Australian bank. Foreign cheques cost me an additional $US 10 to cover my bank's foreign cheque charge. Please make cheques payable to Simon Carter. Postal money orders ------------------- I accept prepaid postal money orders in Australian dollars. Other Payment Methods --------------------- I also accept foreign currencies (suitably disguised within an envelope) provided they allow an extra $5 for currency conversion. Contact Information =================== I am always happy to hear your comments! If you use and like DirSize, or have any suggestions for improvements, please drop me a line! Email: launch@ozemail.com.au WWW: Checkout the Crystal Software home page at http://www.ozemail.com.au/~launch Fax: +61-3 9800-3078 Any time. Voice: +61-3 9888-3104 After hours number. Please leave a contact name, number and time, and I will try to get back to you within 24 hours. Mail: Simon Carter Crystal Software 2 / 9 Woodbine Court Wantirna Victoria 3152 AUSTRALIA.