In Hacking engine (which is accessed from the title screen), there are a number of directories and tools that can be useful (such as spawning a weapon within The Matrix.).

Command Effect

DIR List files and folders
CLS Clear the screen of text
HELP Extended help for a command
TRACEKILL Kills traces
READ Read *.txt files
VIEW View *.img files
PLAY Play *.fmv files
DROP JXTRR10 Weapon drop at Drainage Canal
DROP PNSRZ10 Weapon drop at North Concourse
DROP RKHMS10 Weapon drop at Airport Tunneld
DROP JDZMT10 Weapon drop at 2nd Floor West (Chateau)
DROP ZKHBD10 Weapon drop at Courtyard (Chateau)
DROP RHFTQ10 Weapon drop at Skyscraper
DROP ZSZQH10 Weapon drop at Warehouse (Chinatown)
DROP JDHQL10 Weapon drop at Transformer Field (power plant)
DROP B1AXXF2 Weapon drop at 2nd Floor PO Boxes