If you’re coming from Windows, the Linux file system structure can seem particularly alien. The C:\ drive and drive letters are gone, replaced by a / and cryptic-sounding directories, most of which have three letter names. The Filesystem Hierarchy Standard (FHS) defines the structure of file systems on Linux and other UNIX-like operating systems.
More from the "things you'd learn if you read the manual" department, although the manual as currently written is a little esoteric on this feature of hexdump . $ hexdump -e ' [iterations]/[byte_count] "[format string]" '