0intro intro - introduction to the Plan 9 File Protocol 9P in Inferno
attach attach, auth - messages to establish a connection
clunk clunk - forget about a fid
error error - return an error
flush flush - abort a message
open open, create - prepare a fid for I/O on an existing or new file
read read, write - transfer data from and to a file
remove remove - remove a file from a server
stat stat, wstat - inquire or change file attributes
version version - negotiate protocol version
walk walk - descend a directory hierarchy