rmmod(removemodule)
功能说明：删除模块。
语法：rmmod[-as][模块名称...]
补充说明：执行rmmod指令，可删除不需要的模块。Linux操作系统的核心具有模块化的特性，应此在编译核心时，务须把全部的功能都放如核心。你可以将这些功能编译成一个个单独的模块，待有需要时再分别载入它们。
参数：
-a删除所有目前不需要的模块。
-s把信息输出至syslog常驻服务，而非终端机界面。
#p#
NAME
rmmod --- simple program to remove a module from the Linux Kernel
SYNOPSIS
rmmod [-f] [-w] [-s] [-v] [modulename]
DESCRIPTION
rmmod is a trivial program to remove a module from the kernel. Most users will want to use modprobe(8) instead, with the -r option.
OPTIONS
- -v --verbose
- Print messages about what the program is doing. Usually rmmod only prints messages if something goes wrong.
- -f --force
- This option can be extremely dangerous: it has no effect unless CONFIG_MODULE_FORCE_UNLOAD was set when the kernel was compiled. With this option, you can remove modules which are being used, or which are not designed to be removed, or have been marked as unsafe (see lsmod(8)).
- -w --wait
- Normally, rmmod will refuse to unload modules which are in use. With this option, rmmod will isolate the module, and wait until the module is no longer used. Noone new will be able to use the module, but it's up to you to make sure the current users eventually finish with it. See lsmod(8)) for information on usage counts.
- -s --syslog
- Send errors to the syslog, instead of standard error.
- -V --version
- Show version of program, and exit. See below for caveats when run on older kernels.
BACKWARDS COMPATIBILITY
This version of rmmod is for kernels 2.5.48 and above. If it detects a kernel with support for old-style modules (for which much of the work was done in userspace), it will attempt to run rmmod.old in its place, so it is completely transparent to the user.
COPYRIGHT
This manual page Copyright 2002, Rusty Russell, IBM Corporation.
SEE ALSO
modprobe(8), insmod(8), lsmod(8), rmmod.old(8)
