BCC (https://github.com/iovisor/bcc) is a toolkit for creating efficient kernel tracing and manipulation programs, and includes several useful tools and examples. It makes use of extended BPF (Berkeley Packet Filters), formally known as eBPF, a new feature that was first added to Linux 3.15. Much of what BCC uses requires Linux 4.1 and above.

mkfile allows you to create files with arbitary sizes. This comes in handy if want to test file transfer speeds between two endpoints and you want use a file with an exact size.

Ever wanted to show a colleague or friend how to do something in command line and show them the steps and yet not only allowing them to see the steps but also copy the commands from your terminal recording?