What is D?
D is a tool for data processing.
It is a series of command line interface commands
that perform file operations
such as selection, projection, sort,
join, bundling and unbundling,
on D-files.
Some frequently used D commands
Dselect | Selection by a conditional expression |
Dproj | Projection |
Dsort | Sorting by key values |
Djoin | Join/matching of D-files by key values |
Dbundle | Vertical merge of D-records by key values |
Dunbundle | Slicing D-records with a repeating group |
Version history of D
Version | Date | Platforms |
Version 2.5 | Jul 10, 2008 | Windows, Unix/Linux/Mac OS X |
Version 2.4 | Nov 22, 2007 | Windows, Unix/Linux/Mac OS X |
Version 2.3 | Mar 29, 2007 | Windows, Unix |
Version 2.2 | Nov 11, 2004 | Windows, Solaris, SunOS4, Linux |
Version 2.1 | Jun 2, 2004 | Windows, Solaris, SunOS4, Linux |
Version 2.0 | Jul 3, 2003 | WIndows, Solaris, SunOS4 |
Version 1 | Unpublished 1993 | SunOS |