hexdump

Display file contents in hexadecimal, decimal, octal, or ASCII. Useful for inspecting dump file, binary data, or debug output. See also: hexyl, od, xxd. More information: https://manned.org/man/freebsd/hexdump.1.

• Print the hexadecimal representation of a file, replacing duplicate lines by *:

hexdump {{path/to/file}}

• Display the input offset in hexadecimal and its ASCII representation in two columns:

hexdump -C {{path/to/file}}

• Display the hexadecimal representation of a file, but interpret only a specific number of bytes of the input:

hexdump -C -n {{number_of_bytes}} {{path/to/file}}

• Verbose - no suppression by * on duplicate lines:

hexdump -v {{path/to/file}}

• Format output using printf-like format string:

hexdump -e '{{element_format .. end_format}}' {{path/to/file}}