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Linux in a Nutshell

This directory of Linux commands is from Linux in a Nutshell, 5th Edition.

Click on any of the 687 commands below to get a description and list of available options. All links in the command summaries point to the online version of the book on Safari Bookshelf.

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modprobe [options] [modules] [moduleoptions]

System administration command. With no options, attempt to load the specified module, as well as all modules on which it depends. If more than one module is specified, attempt to load further modules only if the previous module failed to load. When specifying a module, use only its name without its path or trailing .o. modprobe will pass to the kernel any options following the module name.


-a, --all

Load all modules matching the given wildcard.

-c, --showconfig

Print modprobe's current configuration.

-f, --force

Ignore all versioning information during module insertion. Even if the module does not match the running kernel, modprobe will try to insert it anyway.


Ignore module versioning mismatches.


Ignore kernel versioning mismatches.


Return failure if told to insert a module that is already present or remove a module that is not loaded. Normally, modprobe will return success if asked to perform an unnecessary action.

-i, --ignore-install,--ignore-remove

Ignore any install and remove directives in the configuration file.

-l, --list

List modules matching the given wildcard (or "*" if no wildcard is given).

-n, --dry-run

Perform all of the actions except actually inserting or removing the module.


Suppress warnings during failure to load a module and continue processing other modules.

-r, --remove

Remove the specified modules, as well as the modules on which they depend.

-s, --syslog

Send error messages to syslogd instead of to standard error.

-ttype, --type type

Load only a specific type of module.

-v, --verbose

Print commands as they are executed.

-C file, --config file

Read additional configuration from file instead of /etc/modules.conf.

-V, --version

Print version, then exit.

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