Introduction
The lsmod command is used to display loaded kernel modules. Kernel modules are code snippets that can be loaded or unloaded to the kernel on demand.
If you want to load modules, let’s use the modprobe command. The modules are fully listed in /etc/modules-load.d/<program>.conf.
We will see how to list loaded kernel modules using lsmod command as we go through below.
lsmod command
$ lsmod
Output:
Explained:
1st column: the names of loaded modules
2nd column: the memory capacity of each module
3rd column: the total number of uses and optionally the name of the module
You can use another way to search a specific module by the grep command. For example, I want to search a module named “xor”:
$ lsmod | grep xor
Output:
To get more information about kernel modules, let’s use the modinfo command. For example:
$ sudo modinfo xor
Output:
Conclusion
You have just seen the tutorial of how to list loaded kernel modules using lsmod command.
Thanks for reading.
Karim Buzdar holds a degree in telecommunication engineering and holds several sysadmin certifications including CCNA RS, SCP, and ACE. As an IT engineer and technical author, he writes for various websites.
