- free
- freehostent
- freopen
- frexp
- fscanf
- fseek
- fseeko
- fsetpos
- ftell
- ftello
- ftime
- ftok
- ftrylockfile
- fts
- fts_children
- fts_close
- fts_open
- fts_read
- fts_set
- ftw
- funlockfile
- fwide
- fwprintf
- fwrite
- gamma
- gcvt
- getaddrinfo
- getc
- getchar
- getcwd
- getdate
- getdelim
- getdirentries
- getenv
- getfsent
- getfsfile
- getfsspec
- getgrent
- getgrgid
- getgrnam
- gethostbyaddr
- gethostbyname
- getipnodebyaddr
- getipnodebyname
- getline
- getloadavg
- getlogin
- getmntent
- getnameinfo
- getnetent
- getopt
- getpass
- getprotoent
- getpt
- getpw
- getpwent
- getpwnam
- getpwuid
- getrpcbyname
- getrpcbynumber
- getrpcent
- getrpcport
- gets
- getservent
- getttyent
- getttynam
- getumask
- getusershell
- getutent
- getw
MAN (3)
Library functions, covering in particular the C standard library