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