Hexdump
Hexdump is a command-line tool used to show the raw bytes of a file in various ways including hexadecimal, available on Linux, FreeBDS, OS X, and other platforms. Hexdump is not part of traditional Unix systems or GNU commands.
Options
[edit | edit source]Command-line options aka switches of hexdump:
- -b: One-byte octal display.
- -c: One-byte character display.
- -C: Canonical hex+ASCII display.
- -d: Two-byte decimal display.
- -e format_string: Format the data as specified in the format string.
- -f format_file: Use newline-separated format strings from the file.
- -n length: Process only length bytes of input.
- -o: Two-byte octal display.
- -s offset: Ignore offset bytes from the beginning of the input.
- -v: Use unabbreviated display rather than displaying some sequences merely as *.
- -x: Two-byte hexadecimal display.
Examples
[edit | edit source]Examples of hexdump use:
- hexdump -v -e '"" 1/1 "%02X" " "' myfile
- Shows the bytes in hexadecimal using capitalized letters, each byte separated by a space. The first "" specifies and empty prefix, while the last " " specifies a single-space suffix.
Versions
[edit | edit source]A different version of hexdump for MS Windows is available from GnuWin32 project.
External links
[edit | edit source]- hexdump at freebsd.org
- hexdump(1) OS X Manual Page at developer.apple.com