Man Pages in HTML Format: man2

accept - accept a connection on a socket

access - check user's permissions for a file

acct - switch process accounting on or off

adjtimex - tune kernel clock

alarm - set an alarm clock for delivery of a signal

alloc_hugepages - allocate or free huge pages

arch_prctl - Set architecture specific thread state.

bdflush - start, flush, or tune buffer-dirty-flush daemon

bind - bind a name to a socket

brk - change data segment size

cacheflush - flush contents of instruction and/or data cache

capget - set/get process capabilities

chdir - change working directory

chmod - change permissions of a file

chown - change ownership of a file

chroot - change root directory

clone - create a child process

close - close a file descriptor

connect - initiate a connection on a socket

dup - duplicate a file descriptor

execve - execute program

fcntl - manipulate file descriptor

fdatasync - synchronize a file's in-core data with that on disk

flock - apply or remove an advisory lock on an open file

fork - create a child process

fsync - synchronize a file's complete in-core state with that on disk

futex - Fast Userspace Locking system call

getcontext - get or set the user context

getdents - get directory entries

getdomainname - get/set domain name

getdtablesize - get descriptor table size

getgid - get group identity

getgroups - get/set list of supplementary group IDs

gethostid - get or set the unique identifier of the current host

gethostname - get/set host name

getitimer - get or set value of an interval timer

getpagesize - get memory page size

getpeername - get name of connected peer socket

getpid - get process identification

getpriority - get/set program scheduling priority

getresuid - get real, effective and saved user or group ID

getrlimit - get/set resource limits and usage

getsid - get session ID

getsockname - get socket name

getsockopt - get and set options on sockets

gettid - get thread identification

gettimeofday - get / set time

getuid - get user identity

idle - make process 0 idle

intro - Introduction to system calls

ioctl - control device

ioctl_list - list of ioctl calls in Linux/i386 kernel

ioperm - set port input/output permissions

iopl - change I/O privilege level

ipc - System V IPC system calls

kill - send signal to a process

killpg - send signal to a process group

link - make a new name for a file

listen - listen for connections on a socket

llseek - reposition read/write file offset

lseek - reposition read/write file offset

madvise - give advice about use of memory

mincore - get information on whether pages are in core

mkdir - create a directory

mknod - create a special or ordinary file

mlock - disable paging for some parts of memory

mlockall - disable paging for calling process

mmap - map or unmap files or devices into memory

mmap2 - map files or devices into memory

modify_ldt - get or set ldt

mount - mount and unmount filesystems.

mprotect - control allowable accesses to a region of memory

mremap - re-map a virtual memory address

msgctl - message control operations

msgget - get a message queue identifier

msgop - message operations

msync - synchronize a file with a memory map

munlock - reenable paging for some parts of memory

munlockall - reenable paging for calling process

nanosleep - pause execution for a specified time

nfsservctl - syscall interface to kernel nfs daemon

nice - change process priority

obsolete - obsolete system calls

open - open and possibly create a file or device

outb - port output

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 - read from or write to a file descriptor at a given offset

ptrace - process trace

quotactl - manipulate disk quotas

read - read from a file descriptor

readdir - read directory entry

readlink - read value of a symbolic link

readv - read or write data into multiple buffers

reboot - reboot or enable/disable Ctrl-Alt-Del

recv - receive a message from a socket

rename - change the name or location of a file

rmdir - delete a directory

sched_get_priority_max - get static priority range

sched_rr_get_interval - get the SCHED_RR interval for the named process

sched_setaffinity - set and get a process's CPU affinitymask

sched_setparam - set and get scheduling parameters

sched_yield - yield the processor

select - synchronous I/O multiplexing

select_tut - synchronous I/O multiplexing

semctl - semaphore control operations

semget - get a semaphore set identifier

semop - semaphore operations

send - send a message from a socket

sendfile - transfer data between file descriptors

seteuid - set effective user or group ID

setfsgid - set group identity used for file system checks

setfsuid - set user identity used for file system checks

setgid - set group identity

setpgid - set/get process group

setresuid - set real, effective and saved user or group ID

setreuid - set real and/or effective user or group ID

setsid - creates a session and sets the process group ID

setuid - set user identity

setup - setup devices and file systems, mount root file system

shmctl - shared memory control

shmget - allocates a shared memory segment

shmop - shared memory operations

shutdown - shut down part of a full-duplex connection

sigaction - POSIX signal handling functions.

sigaltstack - set and/or get signal stack context

sigblock - manipulate the signal mask

signal - ANSI C signal handling

sigpause - atomically release blocked signals and wait for interrupt

sigqueue - queue a signal and data to a process

sigreturn - return from signal handler and cleanup stack frame

sigvec - BSD software signal facilities

sigwaitinfo - synchronously wait for queued signals

socket - create an endpoint for communication

socketcall - socket system calls

socketpair - create a pair of connected sockets

stat - get file status

statfs - get file system statistics

stime - set time

swapon - start/stop swapping to file/device

symlink - make a new name for a file

sync - commit buffer cache to disk.

syscall - indirect system call

syscalls - list of all system calls

sysctl - read/write system parameters

sysfs - get file system type information

sysinfo - returns information on overall system statistics

syslog - read and/or clear kernel message ring buffer; set console_loglevel

time - get time in seconds

times - get process times

tkill - send a signal to a single process

truncate - truncate a file to a specified length

umask - set file creation mask

uname - get name and information about current kernel

unimplemented - unimplemented system calls

unlink - delete a name and possibly the file it refers to

uselib - select shared library

ustat - get file system statistics

utime - change access and/or modification times of an inode

vfork - create a child process and block parent

vhangup - virtually hangup the current tty

vm86 - enter virtual 8086 mode

wait - wait for process termination

wait4 - wait for process termination, BSD style

write - write to a file descriptor