Display hexadecimal data (Vim and hexdump)

1. Display hexadecimal data in VIM
: %! Xxd-G 1 indicates that each byte is one group.
: %! Xxd-G 2 indicates that every two bytes is a group (default)
: %! Xxd-G 4 indicates that each 4 bytes is a group of 1
: %! Xxd-r restores Vim to the original display
Man xxd can get the help file of xxd
Ii. hexdump displays hexadecimal data

Hexdump can display the file content in hexadecimal format, for example, a file with a content of 01234567890

Remember a usage (-C ):

Hexdump a-c
00000000 30 31 32 33 34 35 36 37 38 39 30 0a | 01234567890 .. |
0000000c

The red part corresponds to the hexadecimal and ASCII code.

\ R --> 0x0d carriage return

\ N --> 0x0a line break