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_exit(2)
terminate the calling process
accept(2)
accept a connection on a socket
access(2)
check access permissions of a file or pathname
acct(2)
enable or disable process accounting
adjtime(2)
correct the time to allow synchronization of the system clock
async_daemon(2)
create a local NFS asynchronous I/O server
bind(2)
bind a name to a socket
brk(2), sbrk(2)
change data segment size
chdir(2), fchdir(2)
change current working directory
chflags(2), fchflags(2)
set file flags
chmod(2), fchmod(2)
change mode of file
chown(2), fchown(2)
change owner and group of a file
chroot(2)
change root directory
close(2)
delete a descriptor
connect(2)
initiate a connection on a socket
creat(2)
create a new file
dup(2), dup2(2)
duplicate an existing file descriptor
execve(2)
execute a file
fcntl(2)
file control
flock(2)
apply or remove an advisory lock on an open file
fork(2)
create a new process
fsync(2)
synchronize a file's in-core state with that on disk
getdirentries(2)
get directory entries in a filesystem independent format
getdomainname(2), setdomainname(2)
get/set name of current host
getdtablesize(2)
get descriptor table size
getfh(2)
get file handle
getfsstat(2)
get list of all mounted filesystems
getgid(2), getegid(2)
get group process identification
getgroups(2)
get group access list
gethostid(2), sethostid(2)
get/set unique identifier of current host
gethostname(2), sethostname(2)
get/set name of current host
getitimer(2), setitimer(2)
get/set value of interval timer
getlogin(2), setlogin(2)
get/set login name
getpagesize(2)
get system page size
getpeername(2)
get name of connected peer
getpgrp(2)
get process group
getpid(2), getppid(2)
get parent or calling process identification
getpriority(2), setpriority(2)
get/set program scheduling priority
getrlimit(2), setrlimit(2)
control maximum system resource consumption
getrusage(2)
get information about resource utilization
getsockname(2)
get socket name
getsockopt(2), setsockopt(2)
get and set options on sockets
gettimeofday(2), settimeofday(2)
get/set date and time
getuid(2), geteuid(2)
get user identification
intro(2)
introduction to system calls and error numbers
ioctl(2)
control device
kill(2)
send signal to a process
killpg(2)
send signal to a process group
ldexp(3)
mutliply floating-point number by integral power of 2
link(2)
make a hard file link
listen(2)
listen for connections on a socket
lseek(2)
reposition read/write file offset
madvise(2)
give advise about use of memory
mincore(2)
get advise about use of memory
mkdir(2)
make a directory file
mkfifo(2)
make a fifo file
mknod(2)
make a special file node
mmap(2)
map files or devices into memory
mount(2), unmount(2)
mount or dismount a filesystem
mprotect(2)
control the protection of pages
msync(2)
synchronize a mapped region
munmap(2)
remove a mapping
nfssvc(2)
create a remote NFS server
open(2)
open or create a file for reading or writing
pipe(2)
create descriptor pair for interprocess communication
quotactl(2)
manipulate filesystem quotas
read(2), readv(2)
read input
readlink(2)
read value of a symbolic link
reboot(2)
reboot system or halt processor
recv(2), recvfrom(2), recvmsg(2)
receive a message from a socket
rename(2)
change the name of a file
rmdir(2)
remove a directory file
select(2)
synchronous I/O multiplexing
send(2), sendto(2), sendmsg(2)
send a message from a socket
setgroups(2)
set group access list
setpgid(2), setpgrp(2)
set process group
setregid(2)
set real and effective group ID
setreuid(2)
set real and effective user ID's
shutdown(2)
shut down part of a full-duplex connection
sigaction(2)
software signal facilities
sigblock(2)
block signals
sigpause(2)
atomically release blocked signals and wait for interrupt
sigprocmask(2)
manipulate current signal mask
sigreturn(2)
return from signal
sigsetmask(2)
set current signal mask
sigstack(2)
set and/or get signal stack context
sigsuspend(2)
atomically release blocked signals and wait for interrupt
sigvec(2)
software signal facilities
socket(2)
create an endpoint for communication
socketpair(2)
create a pair of connected sockets
stat(2), lstat(2), fstat(2)
get file status
statfs(2)
get file system statistics
swapon(2)
add a swap device for interleaved paging/swapping
symlink(2)
make symbolic link to a file
sync(2)
synchronize disk block in-core status with that on disk
syscall(2)
indirect system call
truncate(2)
truncate a file to a specified length
umask(2)
set file creation mode mask
uname(2)
get host information
unlink(2)
remove directory entry
utimes(2)
set file access and modification times
vfork(2)
spawn new process in a virtual memory efficient way
wait(2), waitpid(2), wait4(2), wait3(2)
wait for process terminatation
write(2), writev(2)
write output
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