| DBI/DBperl | /authors/Tim_Bunce/DBI in the CPAN archives | 
| fakessi.pl | |
| GD Graphics Library | C Library:(http://www.boutell.com/gd/) Perl 5.0:http://www-genome.wi.mit.edu/ftp/pub/software/WWW/GD.html Tcl:http://guraldi.hgp.med.umich.edu/gdtcl.html | 
| GhostScript | http://www.phys.ufl.edu/docs/goodies/unix/previewers/ghostscript.html | 
| Glimpse | |
| gnuplot v3.5 | |
| ImageMagick | |
| mSQL | |
| netpbm | |
| oraperl | |
| pgperl | |
| Python | |
| RDB | |
| SWISH | |
| sybperl |