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F (continued)

fgetc_unlocked(3)nonlocking stdio functions✨
fgetgrent(3)get group file entry✨
fgetgrent_r(3)get group file entry reentrantly✨
fgetpos(3)reposition a stream✨
fgetpwent(3)get password file entry✨
fgetpwent_r(3)get passwd file entry reentrantly✨
fgets(3)FILE get line-string✨
fgets_unlocked(3)nonlocking stdio functions✨
fgetspent(3)get shadow password file entry✨
fgetspent_r(3)get shadow password file entry✨
fgetwc(3)read a wide character from a FILE stream✨
fgetwc_unlocked(3)nonlocking stdio functions✨
fgetws(3)read a wide-character string from a FILE stream✨
fgetws_unlocked(3)nonlocking stdio functions✨
fgetxattr(2)retrieve an extended attribute value✨
FICLONE(2const)share some the data of one file with another file✨
FICLONERANGE(2const)share some the data of one file with another file✨
FIDEDUPERANGE(2const)share some the data of one file with another file✨
FILE(3type)input/output stream✨
fileno(3)obtain file descriptor of a stdio stream✨
fileno_unlocked(3)nonlocking stdio functions✨
finit_module(2)load a kernel module✨
finite(3)BSD floating-point classification functions✨
finitef(3)BSD floating-point classification functions✨
finitel(3)BSD floating-point classification functions✨
FIONREAD(2const)buffer count and flushing✨
flistxattr(2)list extended attribute names✨
float_t(3type)most efficient floating types✨
flock(2)apply or remove an advisory lock on an open file✨
flockfile(3)lock FILE for stdio✨
floor(3)largest integral value not greater than argument✨
floorf(3)largest integral value not greater than argument✨
floorl(3)largest integral value not greater than argument✨
fma(3)floating-point multiply and add✨
fmaf(3)floating-point multiply and add✨
fmal(3)floating-point multiply and add✨
fmax(3)determine maximum of two floating-point numbers✨
fmaxf(3)determine maximum of two floating-point numbers✨
fmaxl(3)determine maximum of two floating-point numbers✨
fmemopen(3)open memory as stream✨
fmin(3)determine minimum of two floating-point numbers✨
fminf(3)determine minimum of two floating-point numbers✨
fminl(3)determine minimum of two floating-point numbers✨
fmod(3)floating-point remainder function✨
fmodf(3)floating-point remainder function✨
fmodl(3)floating-point remainder function✨
fmtmsg(3)print formatted error messages✨
fnmatch(3)match filename or pathname✨
fopen(3)stream open functions✨
fopencookie(3)open a custom stream✨
fork(2)create a child process✨
forkpty(3)terminal utility functions✨
fpathconf(3)get configuration values for files✨
fpclassify(3)floating-point classification macros✨
fprintf(3)formatted output conversion✨
fpurge(3)purge a stream✨
fputc(3)output of characters and strings✨
fputc_unlocked(3)nonlocking stdio functions✨
fputs(3)output of characters and strings✨
fputs_unlocked(3)nonlocking stdio functions✨
fputwc(3)write a wide character to a FILE stream✨
fputwc_unlocked(3)nonlocking stdio functions✨
fputws(3)write a wide-character string to a FILE stream✨
fputws_unlocked(3)nonlocking stdio functions✨
fread(3)binary stream input/output✨
fread_unlocked(3)nonlocking stdio functions✨
free(3)allocate and free dynamic memory✨
free_hugepages(2)allocate or free huge pages✨
freeaddrinfo(3)network address and service translation✨
freehostent(3)get network hostnames and addresses✨
freeifaddrs(3)get interface addresses✨
freelocale(3)create, modify, and free a locale object✨
fremovexattr(2)remove an extended attribute✨
freopen(3)stream open functions✨
frexp(3)convert floating-point number to fractional and integral components✨
frexpf(3)convert floating-point number to fractional and integral components✨
frexpl(3)convert floating-point number to fractional and integral components✨
fs_disk_quota(2type)filesystem disk quota✨
FS_IOC_GETFLAGS(2const)ioctl() operations for inode flags✨
FS_IOC_GETFSLABEL(2const)get or set a filesystem label✨
FS_IOC_GETFSMAP(2const)retrieve the physical layout of the filesystem✨
FS_IOC_SETFLAGS(2const)ioctl() operations for inode flags✨
FS_IOC_SETFSLABEL(2const)get or set a filesystem label✨
fscanf(3)input FILE format conversion✨
fsconfig(2)configure new or existing filesystem context✨
fseek(3)reposition a stream✨
fseeko(3)seek to or report file position✨
fsetpos(3)reposition a stream✨
fsetxattr(2)set an extended attribute value✨
fsmount(2)instantiate mount object from filesystem context✨
fsopen(2)create a new filesystem context✨
fspick(2)select filesystem for reconfiguration✨
fstat(2)get file status✨
fstat64(2)get file status✨
fstatat(2)get file status✨
fstatat64(2)get file status✨
fstatfs(2)get filesystem statistics✨
fstatfs64(2)get filesystem statistics✨
fstatvfs(3)get filesystem statistics✨
fsync(2)synchronize a file's in-core state with storage device✨
ftell(3)reposition a stream✨
ftello(3)seek to or report file position✨
ftime(3)return date and time✨
ftok(3)convert a pathname and a project identifier to a System V IPC key✨
ftruncate(2)truncate a file to a specified length✨
ftruncate64(2)truncate a file to a specified length✨
ftrylockfile(3)lock FILE for stdio✨
fts(3)traverse a file hierarchy✨
fts_children(3)traverse a file hierarchy✨
fts_close(3)traverse a file hierarchy✨
fts_open(3)traverse a file hierarchy✨
fts_read(3)traverse a file hierarchy✨
fts_set(3)traverse a file hierarchy✨
ftw(3)file tree walk✨
funlockfile(3)lock FILE for stdio✨
futex(2)fast user-space locking✨
FUTEX_CMP_REQUEUE(2const)compare a futex, wake some waiters, and requeue others✨
FUTEX_CMP_REQUEUE_PI(2const)compare a priority-inheritance futex, wake a waiter, and requeue others✨
FUTEX_FD(2const)create a file descriptor associated with a futex✨
FUTEX_LOCK_PI(2const)lock a priority-inheritance futex✨
FUTEX_LOCK_PI2(2const)lock a priority‐inheritance futex✨
FUTEX_REQUEUE(2const)wake some waiters, and requeue others✨
FUTEX_TRYLOCK_PI(2const)try to lock a priority-inheritance futex✨
FUTEX_UNLOCK_PI(2const)unlock a priority‐inheritance futex✨
FUTEX_WAIT(2const)sleep waiting for a FUTEX_WAKE operation✨
FUTEX_WAIT_BITSET(2const)selective futex waiting and waking✨
FUTEX_WAIT_REQUEUE_PI(2const)wait on a non-PI futex, and potentially be requeued onto a PI futex✨
futex_waitv(2)wait for FUTEX_WAKE operation on a vector of futexes✨
FUTEX_WAKE(2const)wake waiters that are inside FUTEX_WAIT✨
FUTEX_WAKE_BITSET(2const)selective futex waiting and waking✨
FUTEX_WAKE_OP(2const)fast user-space locking✨
futimens(3)change file timestamps with nanosecond precision✨
futimes(3)change file timestamps✨
futimesat(2)change timestamps of a file relative to a directory file descriptor✨
fwide(3)set and determine the orientation of a FILE stream✨
fwprintf(3)formatted wide-character output conversion✨
fwrite(3)binary stream input/output✨
fwrite_unlocked(3)nonlocking stdio functions✨

G

gai_cancel(3)asynchronous network address and service translation✨
gai_error(3)asynchronous network address and service translation✨
gai_strerror(3)network address and service translation✨
gai_suspend(3)asynchronous network address and service translation✨
gamma(3)(logarithm of the) gamma function✨
gammaf(3)(logarithm of the) gamma function✨
gammal(3)(logarithm of the) gamma function✨
gcvt(3)convert a floating-point number to a string✨
get_avphys_pages(3)get total and available physical page counts✨
get_current_dir_name(3)get current working directory✨
get_kernel_syms(2)retrieve exported kernel and module symbols✨
get_mempolicy(2)retrieve NUMA memory policy for a thread✨
get_myaddress(3)library routines for remote procedure calls✨
get_nprocs(3)get number of processors✨
get_nprocs_conf(3)get number of processors✨
get_phys_pages(3)get total and available physical page counts✨
get_robust_list(2)get/set list of robust futexes✨
get_thread_area(2)manipulate thread-local storage information✨
getaddrinfo(3)network address and service translation✨
getaddrinfo_a(3)asynchronous network address and service translation✨
getaliasbyname(3)read an alias entry✨
getaliasbyname_r(3)read an alias entry✨
getaliasent(3)read an alias entry✨
getaliasent_r(3)read an alias entry✨
getauxval(3)retrieve a value from the auxiliary vector✨
getc(3)get character from stream✨
getc_unlocked(3)nonlocking stdio functions✨
getchar(3)FILE get character✨
getchar_unlocked(3)nonlocking stdio functions✨
getcontext(3)get or set the user context✨
getcpu(2)determine CPU and NUMA node on which the calling thread is running✨
getcwd(2)get current working directory✨
getcwd(3)get current working directory✨
getdate(3)convert a date-plus-time string to broken-down time✨
getdate_err(3)convert a date-plus-time string to broken-down time✨
getdate_r(3)convert a date-plus-time string to broken-down time✨
getdelim(3)delimited string input✨
getdents(2)get directory entries✨
getdents64(2)get directory entries✨
getdirentries(3)get directory entries in a filesystem-independent format✨
getdomainname(2)get/set NIS domain name✨
getdtablesize(3)get file descriptor table size✨
getegid(2)get group identity✨
getegid32(2)get group identity✨
getentropy(3)fill a buffer with random bytes✨
getenv(3)get an environment variable✨
geteuid(2)get user identity✨
geteuid32(2)get user identity✨
getfsent(3)handle fstab entries✨
getfsfile(3)handle fstab entries✨
getfsspec(3)handle fstab entries✨
getgid(2)get group identity✨
getgid32(2)get group identity✨
getgrent(3)get group file entry✨
getgrent_r(3)get group file entry reentrantly✨
getgrgid(3)get group file entry✨
getgrgid_r(3)get group file entry✨
getgrnam(3)get group file entry✨
getgrnam_r(3)get group file entry✨
getgrouplist(3)get list of groups to which a user belongs✨
getgroups(2)get/set list of supplementary group IDs✨
getgroups32(2)get/set list of supplementary group IDs✨