xxd flags & options

Basic usage

Create a hex dump of a file.

xxd file.bin

Plain hex dump without line numbers or ASCII column.

xxd -p file.bin

Reverse a hex dump back into binary.

xxd -r hexdump.txt > restored.bin

xxd -r -p plainhex.txt > restored.bin

Dump only the first N bytes.

xxd -l 64 file.bin

Start at a byte offset.

xxd -s 0x100 file.bin

xxd -s 256 -l 32 file.bin

Set the number of bytes per line.

xxd -c 32 file.bin

Set byte grouping. Default is 2.

xxd -g 1 file.bin

xxd -g 4 file.bin

Output as a C-style array.

xxd -i data.bin

Show binary (bits) instead of hex.

xxd -b file.bin

Dump, edit the hex, and convert back.

xxd file.bin > hex.txt

xxd -r hex.txt > modified.bin