Console commands:

HELP         - Displays a list of commands and their meaning.
SPOILER      - Displays a brief level spoiler. Useful if you are stuck. 
LS           - Displays a list of files on the current server, or the localhost
CAT filename - Displays the contents of a file
NEXTLEVEL    - Advance to the next game level (If the current one is completed).
SYSINFO      - Displays information about your server
CLS          - Clears the command console window
CLOSE        - Close the console window
SCAN         - Scans a hidden server and reveals it on the targetmap.
BYPASS       - Password bypass for voiceprint password/retinal scan/encryption key.
DELETE       - Deletes a file from the currently locked server.
DNS          - Resolves a hostname to an ip address or the other way around.
PING         - PINGs a server to check for connectivity errors.
KILLTRACE    - Reduces your trace level at a cost of $1000 for each 10%.

/c1Press TAB (repeateadly) to autocomplete a command in the console.
