lsmod

lsmod

lsmod is a trivial program that nicely formats the contents of `/proc/modules`, showing which loadable kernel modules are currently in memory. It takes no arguments (apart from `--help` / `--version` on some distros).The output has one module per line, with three columns:- Module — name of the module- Size — memory footprint in bytes- Used by — reference count followed by a comma-separated list of modules or subsystems that depend on itA reference count greater than zero means the module is in use and cannot simply be `rmmod`-ed without unloading its dependents first.

Module

Module name as registered with the kernel.

Memory used by the module's code and data, in bytes.

Use count followed by the names of modules that depend on this module. A dash (`-`) means nothing currently uses it.

`lsmod` only reports what the kernel has loaded; built-in modules compiled directly into the kernel image do not appear. For more detail on a specific module (author, license, parameters, dependencies), use `modinfo`.

lsmod originally shipped with the older modutils/module-init-tools suites. It is now part of kmod, the current kernel module userspace tools written by Lucas De Marchi and others, which replaced module-init-tools around Linux 3.2.

modprobe(8), rmmod(8), insmod(8), modinfo(8), depmod(8), kmod(8)