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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
aio_cancel(2)
cancel an outstanding asynchronous I/O operation (REALTIME)
aio_error(2)
retrieve error status of asynchronous I/O operation (REALTIME)
aio_read(2)
asynchronous read from a file (REALTIME)
aio_return(2)
retrieve return status of asynchronous I/O operation (REALTIME)
aio_suspend(2)
suspend until asynchronous I/O operations or timeout complete (REALTIME)
aio_write(2)
asynchronous write to a file (REALTIME)
bind(2)
bind a name to a socket
bzip2(1), bunzip2(1)
a block-sorting file compressor, v1.0.2 bzcat - decompresses files to stdout bzip2recover - recovers data from damaged bzip2 files
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), lchown(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
dup(2), dup2(2)
duplicate an existing file descriptor
exchangedata(2)
atomically exchange data between two files
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
getattrlist(2)
get file system attributes
getdirentries(2)
get directory entries in a filesystem independent format
getdirentriesattr(2)
get file system attributes for multiple directory entries
getfh(2)
get file handle
getfsstat(2)
get list of all mounted file systems
getgid(2), getegid(2)
get group process identification
getgroups(2)
get group access list
getitimer(2), setitimer(2)
get/set value of interval timer
getlogin(2), setlogin(2)
get/set login name
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
getsid(2)
get process session
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
getxattr(2), fgetxattr(2)
get an extended attribute value
intro(2)
introduction to system calls and error numbers
ioctl(2)
control device
issetugid(2)
is current executable running setuid or setgid
kill(2)
send signal to a process
kqueue(2), kevent(2)
kernel event notification mechanism
ktrace(2)
process tracing
link(2)
make a hard file link
listen(2)
listen for connections on a socket
listxattr(2), flistxattr(2)
list an extended attribute value
lseek(2)
reposition read/write file offset
madvise(2)
give advice about use of memory
mincore(2)
determine residency of memory pages
minherit(2)
control the inheritance of pages
mkdir(2)
make a directory file
mkfifo(2)
make a fifo file
mknod(2)
make a special file node
mlock(2), munlock(2)
lock (unlock) physical pages in memory
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)
NFS services
open(2)
open or create a file for reading or writing
pathconf(2), fpathconf(2)
get configurable pathname variables
pipe(2)
create descriptor pair for interprocess communication
poll(2)
synchronous I/O multiplexing
profil(2)
control process profiling
ptrace(2)
process tracing and debugging
quotactl(2)
manipulate filesystem quotas
read(2), readv(2), pread(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
removexattr(2), fremovexattr(2)
remove an extended attribute value
rename(2)
change the name of a file
revoke(2)
revoke file access
rmdir(2)
remove a directory file
searchfs(2)
search a volume quickly
select(2)
synchronous I/O multiplexing
semctl(2)
control operations on a semaphore set
semget(2)
obtain a semaphore id
semop(2)
atomic array of operations on a semaphore set
send(2), sendto(2), sendmsg(2)
send a message from a socket
setattrlist(2)
set file system attributes
setgroups(2)
set group access list
setpgid(2), setpgrp(2)
set process group
setsid(2)
create session and set process group ID
setuid(2), seteuid(2), setgid(2), setegid(2)
set user and group ID
setxattr(2), fsetxattr(2)
set an extended attribute value
shmat(2), shmdt(2)
map/unmap shared memory
shmctl(2)
shared memory control operations
shmget(2)
get shared memory area identifier
shutdown(2)
shut down part of a full-duplex connection
sigaction(2)
software signal facilities
sigaltstack(2)
set and/or get signal stack context
sigpending(2)
get pending signals
sigprocmask(2)
manipulate current signal mask
sigreturn(2)
return from signal
sigstack(2)
set and/or get signal stack context
sigsuspend(2)
atomically release blocked signals and wait for interrupt
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
symlink(2)
make symbolic link to a file
sync(2)
synchronize disk block in-core status with that on disk
syscall(2), __syscall(2)
indirect system call
truncate(2), ftruncate(2)
truncate or extend a file to a specified length
umask(2)
set file creation mode mask
unlink(2)
remove directory entry
utimes(2), futimes(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 termination
write(2), writev(2), pwrite(2)
write output
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