Linux User and Programmer's Manual - Manpages
Manual pages starting with i.idle inb inb_p init_module inl inl_p inotify_add_watch inotify_init1 inotify_init inotify_rm_watch insb insl insw intro inw inw_p io_cancel ioctl_console ioctl_fat ioctl_ficlone ioctl_ficlonerange ioctl_fideduperange ioctl_fslabel ioctl_getfsmap ioctl_iflags ioctl_list ioctl_ns ioctl ioctl_tty ioctl_userfaultfd io_destroy io_getevents ioperm iopl ioprio_get ioprio_set io_setup io_submit ipc isastream