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If at least one answer is "yes", then you should take a look at CMSort, a freeware 32-bit command line sort utility for Windows 95/98/NT/2000/XP/Vista/7. An additional advantage of CMsort is its capability to handle not only text files with DOS/Windows end-of-line-marks, but also files with UNIX, MAC, or even mixed (!) end-of-line marks! CMsort is also able to sort files with fixed-length records.
If you have any questions or comments, feel free to
contact the author.
Note: CMsort uses the quicksort algorithm. Therefore, it's not a stable sort.
I just wanted to drop you a line to congratulate you on a superb piece of work when it comes to CMSort. I had a large file (130,000,000 bytes - 10,000,000 records ... each a digit from 0 to 999,999,999) which nothing I had would sort. I could play with it in Access97, but nothing else would touch it (and Access didn't like it). So, since the file was created, and managed with Visual Basic (which worked quite well for generating and picking out some data), I didn't feel like writing a homegrown sorting algorithm (I'm experimenting with random numbers, and a means of generating unique values which resulted in the file in question...) Anyhow, your software clocks in at 18 minutes and 16 seconds to sort my data. (I'm running a PII 300, and I used the default settings, ie. CMSort <infile> <outfile>). Very impressive! To think, I was just impressed that the program made it through the data (I ran out of patience with Access97 and killed the process after close to an hour... it wasn't getting anywhere and it was slowing my machine down!) So, to make a long story short... Thanks! You made my day.
1234567890123456789012345678901234567890123 Cust. Name Order Return No. Date 1004711 Miller & Co. 1999-12-06 1,207.23 1004713 Topsoft 2000-01-04 2,521.95 1004747 MCP & Co. 2000-01-04 7,356.88 1004799 Eftpos 1999-12-06 23,122.56 Execution of cmsort /H=3 /S=22,10 /N=33,11- CUSTOMER.TXT CUSTOMER.SORwill sort this file by order date (ascending) and return (descending). The result is:
1234567890123456789012345678901234567890123 Cust. Name Order Return No. Date 1004799 Eftpos 1999-12-06 23,122.56 1004711 Miller & Co. 1999-12-06 1,207.23 1004747 MCP & Co. 2000-01-04 7,356.88 1004713 Topsoft 2000-01-04 2,521.95Explanation of command line arguments:
|/H=3||don't sort three header lines|
|/S=22,10||first part of key is a string, beginning at position 22, length 10 bytes, sort ascending (default)|
|/N=33,11-||second part of key is numeric, beginning at position 33, length 11 bytes, sort descending (-)|
055 Maas 2001-02-05 07:31:55 087 Mechenbier 2001-02-05 08:01:23 024 Hesselbein 2001-02-05 08:15:16 055 Maas 2001-02-05 08:44:24 089 Kruft 2001-02-05 09:05:07 087 Mechenbier 2001-02-05 09:31:13 Execution of cmsort /S=1,3 /D LOG.TXT LOG.SORwill sort the log file by user ID (ascending) without duplicates. The result is:
024 Hesselbein 2001-02-05 08:15:16 055 Maas 2001-02-05 08:44:24 087 Mechenbier 2001-02-05 09:31:13 089 Kruft 2001-02-05 09:05:07
|Program||Memory Usage||Elapsed Time||Notes|
|CUSORT||24 KB||547 seconds||75 MB additional memory on HDD needed|
|CMSort||24 KB||32 seconds||6.5 MB on HDD needed|
|CMSort||100 KB||31 seconds|
|CMSort||1024 KB||30 seconds|
|CMsort is freeware. However, if you like CMsort, want to appreciate my work, and/or support the development, I would be pleased to receive a donation from you via PayPal. The suggested amount to donate is US$ 15 or 10 EUR. However, any amount, higher or lower, is appreciated.|
|Click the button below to make a donation via PayPal in US$:||Click the button below to make a donation via PayPal in EUR:|