man pages section 2: System Calls

facl(2)- Get or set a file's Access Control List (ACL)
fchdir(2)- change working directory
fchmod(2)- change access permission mode of file
fchown(2)- change owner and group of a file
fchroot(2)- change root directory
fcntl(2)- file control
fgetcmwfsrange(2)- Get file system sensitivity label range
fgetcmwlabel(2)- get file CMW label
fgetfattrflag(2)- set/get the security attribute flags of a file
fgetfpriv(2)- return or set a privilege set associated with a file
fgetfsattr(2)- Get filesystem security attributes
fgetmldadorn(2)- Get file system multilevel directory adornment
fgetsldname(2)- Get file system single-level directory name
fork1(2)- create a new process
fork(2)- create a new process
fpathconf(2)- Get configurable pathname variables
fsetcmwlabel(2)- Set CMW label of a file
fsetfattrflag(2)- set/get the security attribute flags of a file
fsetfpriv(2)- return or set a privilege set associated with a file
fstat(2)- get file status
fstatvfs(2)- get file system information