obsolete
oldfstat
oldlstat
oldolduname
oldstat
olduname
open
outb
outb_p
outl
outl_p
outsb
outsl
outsw
outw
outw_p
pause - wait for signal
personality - set the process execution domain
pipe - create pipe
pivot_root - change the root file system
poll - wait for some event on a file descriptor
prctl - operations on a process
pread
prof
pselect
ptrace - process trace
pwrite
query_module - query the kernel for various bits pertaining to modules.
quotactl - manipulate disk quotas
read - read from a file descriptor
readdir - read directory entry
readlink - read value of a symbolic link
readv
reboot - reboot or enable/disable Ctrl-Alt-Del
recv
recvfrom
recvmsg
rename - change the name or location of a file
rmdir - delete a directory