The page contains the links to the section 2 of Linux man pages, i.e. the system calls
_Exit.2 _exit.2 _llseek.2 _newselect.2 _sysctl.2 accept.2 access.2 acct.2 add_key.2 adjtimex.2 afs_syscall.2 alarm.2 alloc_hugepages.2 arch_prctl.2 bdflush.2 bind.2 break.2 brk.2 cacheflush.2 chdir.2 chmod.2 chown.2 chroot.2 clock_getres.2 clock_gettime.2 clock_nanosleep.2 clock_settime.2 clone.2 clone2.2 close.2 connect.2 creat.2 create_module.2 delete_module.2 dup.2 dup2.2 epoll_create.2 epoll_ctl.2 epoll_wait.2 execve.2 exit.2 exit_group.2 faccessat.2 fadvise.2 fadvise64.2 fadvise64_64.2 fchdir.2 fchmod.2 fchmodat.2 fchown.2 fchownat.2 fcntl.2 fdatasync.2 flock.2 fork.2 free_hugepages.2 fstat.2 fstatat.2 fstatfs.2 fstatvfs.2 fsync.2 ftruncate.2 futex.2 futimesat.2 get_kernel_syms.2 get_mempolicy.2 get_robust_list.2 get_thread_area.2 getcontext.2 getcwd.2 getdents.2 getdomainname.2 getdtablesize.2 getegid.2 geteuid.2 getgid.2 getgroups.2 gethostid.2 gethostname.2 getitimer.2 getpagesize.2 getpeername.2 getpgid.2 getpgrp.2 getpid.2 getpmsg.2 getppid.2 getpriority.2 getresgid.2 getresuid.2 getrlimit.2 getrusage.2 getsid.2 getsockname.2 getsockopt.2 gettid.2 gettimeofday.2 getuid.2 getunwind.2 gtty.2 idle.2 inb.2 inb_p.2 init_module.2 inl.2 inl_p.2 inotify_add_watch.2 inotify_init.2 inotify_rm_watch.2 insb.2 insl.2 insw.2 intro.2 inw.2 inw_p.2 io_cancel.2 io_destroy.2 io_getevents.2 io_setup.2 io_submit.2 ioctl.2 ioctl_list.2 ioperm.2 iopl.2 ioprio_get.2 ioprio_set.2 ipc.2 kexec_load.2 keyctl.2 kill.2 killpg.2 lchown.2 link.2 linkat.2 listen.2 llseek.2 lock.2 lookup_dcookie.2 lseek.2 lstat.2 madvise.2 mincore.2 mkdir.2 mkdirat.2 mknod.2 mknodat.2 mlock.2 mlockall.2 mmap.2 mmap2.2 modify_ldt.2 mount.2 move_pages.2 mprotect.2 mpx.2 mq_getsetattr.2 mremap.2 msgctl.2 msgget.2 msgop.2 msgrcv.2 msgsnd.2 msync.2 multiplexer.2 munlock.2 munlockall.2 munmap.2 nanosleep.2 nfsservctl.2 nice.2 obsolete.2 oldfstat.2 oldlstat.2 oldolduname.2 oldstat.2 olduname.2 open.2 openat.2 outb.2 outb_p.2 outl.2 outl_p.2 outsb.2 outsl.2 outsw.2 outw.2 outw_p.2 path_resolution.2 pause.2 pciconfig_iobase.2 pciconfig_read.2 pciconfig_write.2 perfmonctl.2 personality.2 pipe.2 pivot_root.2 poll.2 posix_fadvise.2 ppoll.2 prctl.2 pread.2 prof.2 pselect.2 ptrace.2 putpmsg.2 pwrite.2 query_module.2 quotactl.2 read.2 readahead.2 readdir.2 readlink.2 readlinkat.2 readv.2 reboot.2 recv.2 recvfrom.2 recvmsg.2 remap_file_pages.2 rename.2 renameat.2 request_key.2 restart_syscall.2 rmdir.2 rt_sigaction.2 rt_sigpending.2 rt_sigprocmask.2 rt_sigqueueinfo.2 rt_sigreturn.2 rt_sigsuspend.2 rt_sigtimedwait.2 rtas.2 sbrk.2 sched_get_priority_max.2 sched_get_priority_min.2 sched_getaffinity.2 sched_getparam.2 sched_getscheduler.2 sched_rr_get_interval.2 sched_setaffinity.2 sched_setparam.2 sched_setscheduler.2 sched_yield.2 security.2 select.2 select_tut.2 semctl.2 semget.2 semop.2 semtimedop.2 send.2 sendfile.2 sendmsg.2 sendto.2 set_robust_list.2 set_thread_area.2 set_tid_address.2 setcontext.2 setdomainname.2 setegid.2 seteuid.2 setfsgid.2 setfsuid.2 setgid.2 setgroups.2 sethostid.2 sethostname.2 setitimer.2 setpgid.2 setpgrp.2 setpriority.2 setregid.2 setresgid.2 setresuid.2 setreuid.2 setrlimit.2 setsid.2 setsockopt.2 settimeofday.2 setuid.2 setup.2 sgetmask.2 shmat.2 shmctl.2 shmdt.2 shmget.2 shmop.2 shutdown.2 sigaction.2 sigaltstack.2 signal.2 sigpending.2 sigprocmask.2 sigqueue.2 sigreturn.2 sigsuspend.2 sigtimedwait.2 sigwaitinfo.2 socket.2 socketcall.2 socketpair.2 splice.2 spu_create.2 spu_run.2 spufs.2 ssetmask.2 stat.2 statfs.2 statfs64.2 statvfs.2 stime.2 stty.2 swapcontext.2 swapoff.2 swapon.2 symlink.2 symlinkat.2 sync.2 sync_file_range.2 syscall.2 syscalls.2 sysctl.2 sysfs.2 sysinfo.2 syslog.2 tee.2 tgkill.2 time.2 timer_create.2 timer_delete.2 timer_getoverrun.2 timer_gettime.2 timer_settime.2 times.2 tkill.2 truncate.2 tux.2 umask.2 umount.2 umount2.2 uname.2 undocumented.2 unimplemented.2 unlink.2 unlinkat.2 unshare.2 uselib.2 ustat.2 utime.2 utimes.2 vfork.2 vhangup.2 vm86.2 vm86old.2 vmsplice.2 vserver.2 wait.2 wait3.2 wait4.2 waitid.2 waitpid.2 write.2 writev.2