Browse Linux man pages by name. Choose the first letter of the name of the Linux command, function, or file you are interested in:
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accept(2) - accept a connection on a socket
access(2) - check real user's permissions for a file
acct(2) - switch process accounting on or off
adjtimex(2) - tune kernel clock
afs_syscall(2) - unimplemented system calls
alarm(2) - set an alarm clock for delivery of a signal
alloc_hugepages(2) - allocate or free huge pages
arch_prctl(2) - set architecture-specific thread state
bdflush(2) - start, flush, or tune buffer-dirty-flush daemon
bind(2) - bind a name to a socket
break(2) - unimplemented system calls
brk(2) - change data segment size
cacheflush(2) - flush contents of instruction and/or data cache
capget(2) - set/get capabilities
capset(2) - set/get capabilities
chdir(2) - change working directory
chmod(2) - change permissions of a file
chown(2) - change ownership of a file
chown32(2) - change ownership of a file
chroot(2) - change root directory
clock_getres(2) - clock and time functions
clock_gettime(2) - clock and time functions
clock_settime(2) - clock and time functions
clone(2) - create a child process
clone2(2) - create a child process
__clone2(2) - create a child process
close(2) - close a file descriptor
connect(2) - initiate a connection on a socket
creat(2) - open and possibly create a file or device
create_module(2) - create a loadable module entry
delete_module(2) - delete a loadable module entry
dup(2) - duplicate a file descriptor
dup2(2) - duplicate a file descriptor
epoll_create(2) - open an epoll file descriptor
epoll_ctl(2) - control interface for an epoll descriptor
epoll_pwait(2) - wait for an I/O event on an epoll file descriptor
epoll_wait(2) - wait for an I/O event on an epoll file descriptor
eventfd(2) - create a file descriptor for event notification
execve(2) - execute program
exit(2) - terminate the calling process
_Exit(2) - terminate the calling process
_exit(2) - terminate the calling process
exit_group(2) - exit all threads in a process
faccessat(2) - check user's permissions of a file relative to a directory file descriptor
fadvise64(2) - predeclare an access pattern for file data
fadvise64_64(2) - predeclare an access pattern for file data
fallocate(2) - manipulate file space
fchdir(2) - change working directory
fchmod(2) - change permissions of a file
fchmodat(2) - change permissions of a file relative to a directory file descriptor
fchown(2) - change ownership of a file
fchown32(2) - change ownership of a file
fchownat(2) - change ownership of a file relative to a directory file descriptor
fcntl(2) - manipulate file descriptor
fcntl64(2) - manipulate file descriptor
fdatasync(2) - synchronize a file's in-core state with storage device
fgetxattr(2) - retrieve an extended attribute value
flistxattr(2) - list extended attribute names
flock(2) - apply or remove an advisory lock on an open file
fork(2) - create a child process
free_hugepages(2) - allocate or free huge pages
fremovexattr(2) - remove an extended attribute
fsetxattr(2) - set an extended attribute value
fstat(2) - get file status
fstat64(2) - get file status
fstatat(2) - get file status relative to a directory file descriptor
fstatat64(2) - get file status relative to a directory file descriptor
fstatfs(2) - get file system statistics
fstatfs64(2) - get file system statistics
fstatvfs(2) - get file system statistics
fsync(2) - synchronize a file's in-core state with storage device
ftruncate(2) - truncate a file to a specified length
ftruncate64(2) - truncate a file to a specified length
futex(2) - Fast Userspace Locking system call
futimesat(2) - change timestamps of a file relative to a directory file descriptor
getcontext(2) - get or set the user context
getdents(2) - get directory entries
getdents64(2) - get directory entries
getdomainname(2) - get/set domain name
getdtablesize(2) - get descriptor table size
getegid(2) - get group identity
getegid32(2) - get group identity
geteuid(2) - get user identity
geteuid32(2) - get user identity
getgid(2) - get group identity
getgid32(2) - get group identity
getgroups(2) - get/set list of supplementary group IDs
getgroups32(2) - get/set list of supplementary group IDs
gethostid(2) - get or set the unique identifier of the current host
gethostname(2) - get/set host name
getitimer(2) - get or set value of an interval timer
get_kernel_syms(2) - retrieve exported kernel and module symbols
get_mempolicy(2) - Retrieve NUMA memory policy for a process
getpagesize(2) - get memory page size
getpeername(2) - get name of connected peer socket
getpgid(2) - set/get process group
getpgrp(2) - set/get process group
getpid(2) - get process identification
getpmsg(2) - unimplemented system calls
getppid(2) - get process identification
getpriority(2) - get/set program scheduling priority
getresgid(2) - get real, effective and saved user/group IDs
getresgid32(2) - get real, effective and saved user/group IDs
getresuid(2) - get real, effective and saved user/group IDs
getresuid32(2) - get real, effective and saved user/group IDs
getrlimit(2) - get/set resource limits
getrusage(2) - get resource usage
getsid(2) - get session ID
getsockname(2) - get socket name
getsockopt(2) - get and set options on sockets
get_thread_area(2) - Get a Thread Local Storage (TLS) area
gettid(2) - get thread identification
gettimeofday(2) - get / set time
getuid(2) - get user identity
getuid32(2) - get user identity
getxattr(2) - retrieve an extended attribute value
gtty(2) - unimplemented system calls
idle(2) - make process 0 idle
inb(2) - port I/O
inb_p(2) - port I/O
init_module(2) - initialize a loadable module entry
inl(2) - port I/O
inl_p(2) - port I/O
inotify_add_watch(2) - add a watch to an initialized inotify instance
inotify_init(2) - initialize an inotify instance
inotify_rm_watch(2) - remove an existing watch from an inotify instance
insb(2) - port I/O
insl(2) - port I/O
insw(2) - port I/O
intro(2) - Introduction to system calls
inw(2) - port I/O
inw_p(2) - port I/O
io_cancel(2) - cancel an outstanding asynchronous I/O operation
ioctl(2) - control device
ioctl_list(2) - list of ioctl calls in Linux/i386 kernel
io_destroy(2) - destroy an asynchronous I/O context
io_getevents(2) - read asynchronous I/O events from the completion queue
ioperm(2) - set port input/output permissions
iopl(2) - change I/O privilege level
ioprio_get(2) - get/set I/O scheduling class and priority
ioprio_set(2) - get/set I/O scheduling class and priority
io_setup(2) - create an asynchronous I/O context
io_submit(2) - submit asynchronous I/O blocks for processing
ipc(2) - System V IPC system calls
kill(2) - send signal to a process
killpg(2) - send signal to a process group
lchown(2) - change ownership of a file
lchown32(2) - change ownership of a file
lgetxattr(2) - retrieve an extended attribute value
link(2) - make a new name for a file
linkat(2) - create a file link relative to directory file descriptors
listen(2) - listen for connections on a socket
listxattr(2) - list extended attribute names
llistxattr(2) - list extended attribute names
llseek(2) - reposition read/write file offset
_llseek(2) - reposition read/write file offset
lock(2) - unimplemented system calls
lookup_dcookie(2) - return a directory entry's path
lremovexattr(2) - remove an extended attribute
lseek(2) - reposition read/write file offset
lsetxattr(2) - set an extended attribute value
lstat(2) - get file status
lstat64(2) - get file status
madvise(2) - give advice about use of memory
madvise1(2) - unimplemented system calls
mbind(2) - Set memory policy for a memory range
mincore(2) - determine whether pages are resident in memory
mkdir(2) - create a directory
mkdirat(2) - create a directory relative to a directory file descriptor
mknod(2) - create a special or ordinary file
mknodat(2) - create a special or ordinary file relative to a directory file descriptor
mlock(2) - lock and unlock memory
mlockall(2) - lock and unlock memory
mmap(2) - map or unmap files or devices into memory
mmap2(2) - map files or devices into memory
modify_ldt(2) - get or set ldt
mount(2) - mount and unmount filesystems
mprotect(2) - set protection on a region of memory
mpx(2) - unimplemented system calls
mq_getsetattr(2) - get/set message queue attributes
mq_notify(2) - register for notification when a message is available
mq_open(2) - open a message queue
mq_timedreceive(2) - receive a message from a message queue
mq_timedsend(2) - send a message to a message queue
mq_unlink(2) - remove a message queue
mremap(2) - re-map a virtual memory address
msgctl(2) - message control operations
msgget(2) - get a message queue identifier
msgop(2) - message operations
msgrcv(2) - message operations
msgsnd(2) - message operations
msync(2) - synchronize a file with a memory map
munlock(2) - lock and unlock memory
munlockall(2) - lock and unlock memory
munmap(2) - map or unmap files or devices into memory
nanosleep(2) - pause execution for a specified time
_newselect(2) - synchronous I/O multiplexing
nfsservctl(2) - syscall interface to kernel nfs daemon
nice(2) - change process priority
oldfstat(2) - get file status
oldlstat(2) - get file status
oldolduname(2) - get name and information about current kernel
oldstat(2) - get file status
olduname(2) - get name and information about current kernel
open(2) - open and possibly create a file or device
openat(2) - open a file relative to a directory file descriptor
outb(2) - port I/O
outb_p(2) - port I/O
outl(2) - port I/O
outl_p(2) - port I/O
outsb(2) - port I/O
outsl(2) - port I/O
outsw(2) - port I/O
outw(2) - port I/O
outw_p(2) - port I/O
path_resolution(2) - find the file referred to by a filename
pause(2) - wait for signal
pciconfig_iobase(2) - pci device information handling
pciconfig_read(2) - pci device information handling
pciconfig_write(2) - pci device information handling
personality(2) - set the process execution domain
pipe(2) - create pipe
pivot_root(2) - change the root file system
poll(2) - wait for some event on a file descriptor
posix_fadvise(2) - predeclare an access pattern for file data
ppoll(2) - wait for some event on a file descriptor
prctl(2) - operations on a process
pread(2) - read from or write to a file descriptor at a given offset
pread64(2) - read from or write to a file descriptor at a given offset
prof(2) - unimplemented system calls
pselect(2) - synchronous I/O multiplexing
pselect6(2) - synchronous I/O multiplexing
ptrace(2) - process trace
putpmsg(2) - unimplemented system calls
pwrite(2) - read from or write to a file descriptor at a given offset
pwrite64(2) - read from or write to a file descriptor at a given offset
query_module(2) - query the kernel for various bits pertaining to modules
quotactl(2) - manipulate disk quota
read(2) - read from a file descriptor
readahead(2) - perform file readahead into page cache
readdir(2) - read directory entry
readlink(2) - read value of a symbolic link
readlinkat(2) - read value of a symbolic link relative to a directory file descriptor
readv(2) - read or write data into multiple buffers
reboot(2) - reboot or enable/disable Ctrl-Alt-Del
recv(2) - receive a message from a socket
recvfrom(2) - receive a message from a socket
recvmsg(2) - receive a message from a socket
remap_file_pages(2) - create a non-linear file mapping
removexattr(2) - remove an extended attribute
rename(2) - change the name or location of a file
renameat(2) - rename a file relative to directory file descriptors
rmdir(2) - delete a directory
rt_sigaction(2) - examine and change a signal action
rt_sigpending(2) - examine pending signals
rt_sigprocmask(2) - examine and change blocked signals
rt_sigqueueinfo(2) - queue a signal and data to a process
rt_sigreturn(2) - return from signal handler and cleanup stack frame
rt_sigsuspend(2) - wait for a signal
rt_sigtimedwait(2) - synchronously wait for queued signals
sbrk(2) - change data segment size
sched_getaffinity(2) - set and get a process's CPU affinity mask
sched_getparam(2) - set and get scheduling parameters
sched_get_priority_max(2) - get static priority range
sched_get_priority_min(2) - get static priority range
sched_getscheduler(2) - set and get scheduling algorithm/parameters
sched_rr_get_interval(2) - get the SCHED_RR interval for the named process
sched_setaffinity(2) - set and get a process's CPU affinity mask
sched_setparam(2) - set and get scheduling parameters
sched_setscheduler(2) - set and get scheduling algorithm/parameters
sched_yield(2) - yield the processor
security(2) - unimplemented system calls
select(2) - synchronous I/O multiplexing
select_tut(2) - synchronous I/O multiplexing
semctl(2) - semaphore control operations
semget(2) - get a semaphore set identifier
semop(2) - semaphore operations
semtimedop(2) - semaphore operations
send(2) - send a message on a socket
sendfile(2) - transfer data between file descriptors
sendfile64(2) - transfer data between file descriptors
sendmsg(2) - send a message on a socket
sendto(2) - send a message on a socket
setcontext(2) - get or set the user context
setdomainname(2) - get/set domain name
setegid(2) - set effective user or group ID
seteuid(2) - set effective user or group ID
setfsgid(2) - set group identity used for file system checks
setfsgid32(2) - set group identity used for file system checks
setfsuid(2) - set user identity used for file system checks
setfsuid32(2) - set user identity used for file system checks
setgid(2) - set group identity
setgid32(2) - set group identity
setgroups(2) - get/set list of supplementary group IDs
setgroups32(2) - get/set list of supplementary group IDs
sethostid(2) - get or set the unique identifier of the current host
sethostname(2) - get/set host name
setitimer(2) - get or set value of an interval timer
set_mempolicy(2) - set default NUMA memory policy for a process and its children
setpgid(2) - set/get process group
setpgrp(2) - set/get process group
setpriority(2) - get/set program scheduling priority
setregid(2) - set real and/or effective user or group ID
setregid32(2) - set real and/or effective user or group ID
setresgid(2) - set real, effective and saved user or group ID
setresgid32(2) - set real, effective and saved user or group ID
setresuid(2) - set real, effective and saved user or group ID
setresuid32(2) - set real, effective and saved user or group ID
setreuid(2) - set real and/or effective user or group ID
setreuid32(2) - set real and/or effective user or group ID
setrlimit(2) - get/set resource limits
setsid(2) - creates a session and sets the process group ID
setsockopt(2) - get and set options on sockets
set_thread_area(2) - Set a Thread Local Storage (TLS) area
set_tid_address(2) - set pointer to thread ID
settimeofday(2) - get / set time
setuid(2) - set user identity
setuid32(2) - set user identity
setup(2) - setup devices and file systems, mount root file system
setxattr(2) - set an extended attribute value
sgetmask(2) - manipulation of signal mask (obsolete)
shmat(2) - shared memory operations
shmctl(2) - shared memory control
shmdt(2) - shared memory operations
shmget(2) - allocates a shared memory segment
shmop(2) - shared memory operations
shutdown(2) - shut down part of a full-duplex connection
sigaction(2) - examine and change a signal action
sigaltstack(2) - set and/or get signal stack context
signal(2) - ANSI C signal handling
signalfd(2) - create a file descriptor for accepting signals
sigpending(2) - examine pending signals
sigprocmask(2) - examine and change blocked signals
sigqueue(2) - queue a signal and data to a process
sigreturn(2) - return from signal handler and cleanup stack frame
sigsuspend(2) - wait for a signal
sigtimedwait(2) - synchronously wait for queued signals
sigwaitinfo(2) - synchronously wait for queued signals
socket(2) - create an endpoint for communication
socketcall(2) - socket system calls
socketpair(2) - create a pair of connected sockets
splice(2) - splice data to/from a pipe
spu_create(2) - create a new spu context
spu_run(2) - execute an SPU context
ssetmask(2) - manipulation of signal mask (obsolete)
stat(2) - get file status
stat64(2) - get file status
statfs(2) - get file system statistics
statfs64(2) - get file system statistics
statvfs(2) - get file system statistics
stime(2) - set time
stty(2) - unimplemented system calls
swapoff(2) - start/stop swapping to file/device
swapon(2) - start/stop swapping to file/device
symlink(2) - make a new name for a file
symlinkat(2) - create a symbolic link relative to a directory file descriptor
sync(2) - commit buffer cache to disk
sync_file_range(2) - sync a file segment with disk
syscall(2) - indirect system call
_syscall(2) - invoking a system call without library support (OBSOLETE)
syscalls(2) - Linux system calls
sysctl(2) - read/write system parameters
_sysctl(2) - read/write system parameters
sysfs(2) - get file system type information
sysinfo(2) - returns information on overall system statistics
syslog(2) - read and/or clear kernel message ring buffer; set console_loglevel
tee(2) - duplicating pipe content
tgkill(2) - send a signal to a thread
time(2) - get time in seconds
times(2) - get process times
tkill(2) - send a signal to a thread
truncate(2) - truncate a file to a specified length
truncate64(2) - truncate a file to a specified length
tuxcall(2) - unimplemented system calls
ugetrlimit(2) - get/set resource limits
umask(2) - set file mode creation mask
umount(2) - mount and unmount filesystems
umount2(2) - mount and unmount filesystems
uname(2) - get name and information about current kernel
unimplemented(2) - unimplemented system calls
unlink(2) - delete a name and possibly the file it refers to
unlinkat(2) - remove a directory entry relative to a directory file descriptor
unshare(2) - disassociate parts of the process execution context
uselib(2) - load shared library
ustat(2) - get file system statistics
utime(2) - change access and/or modification times of an inode
utimes(2) - change access and/or modification times of an inode
vfork(2) - create a child process and block parent
vhangup(2) - virtually hangup the current tty
vm86(2) - enter virtual 8086 mode
vm86old(2) - enter virtual 8086 mode
vmsplice(2) - splice user pages into a pipe
vserver(2) - unimplemented system calls
wait(2) - wait for process to change state
wait3(2) - wait for process to change state, BSD style
wait4(2) - wait for process to change state, BSD style
waitid(2) - wait for process to change state
waitpid(2) - wait for process to change state
write(2) - write to a file descriptor
writev(2) - read or write data into multiple buffers
