rax2 - Man Page

This command is part of the radare project.

This command allows you to convert values between positive and negative integer, float, octal, binary and hexadecimal values.

-b

Convert from binary string to character (rax2 -b 01000101)

-k

Keep the same base as the input data

-e

Swap endian.

-F

Read C strings from stdin and output in hexpairs. Useful to load shellcodes

-i

Dump stdin to C array in stdout (xxd replacement)

-I

Convert LONG to/from IP ADDRESS

-l

Append newline to the decoded output for human friendly-ness

-K

Show randomart key asciiart for values or hexpairs

-r

Show the same output as the r2's `? 0x804` command. When combined with -S (-rS) it will print r2 commands to write the actual binary into radare2

-s

Convert from hex string to character (rax2 -s 43 4a 50)

-S

Convert from character to hex string (rax2 -S C J P)

-n

Show hexpairs from integer value

-N

Show hexadecimal C string from integer value

-u

Convert given value to human readable units format

-v

Show program version

-x

Convert a string into a hash

-h

Show usage help message

-o

Convert from octal string to char (rax2 -o 162 62)

Force output mode (numeric base)

=f floating point
=2 binary
=3 ternary
=8 octal
=10 decimal
=16 hexadecimal

Available variable types are:

int -> hex rax2 10
hex -> int rax2 0xa
-int -> hex rax2 -77
-hex -> int rax2 0xffffffb3
int -> bin rax2 b30
bin -> int rax2 1010d
float -> hex rax2 3.33f
hex -> float rax2 Fx40551ed8
oct -> hex rax2 35o
hex -> oct rax2 Ox12 (O is a letter)
bin -> hex rax2 1100011b
hex -> bin rax2 Bx63

With no arguments, rax2 reads values from stdin. You can pass one or more values as arguments.

$ rax2 33 0x41 0101b
0x21
65
0x5

You can do 'unpack' hexpair encoded strings easily.

$ rax2 -s 41 42 43
ABC

And it supports some math operations.

$ rax2
0x5*101b+5
30

It is a very useful tool for scripting, so you can read floating point values, or get the integer offset of a jump or a stack delta when analyzing programs.

radare2(1)

Written by pancake <pancake@nopcode.org>.

radare2(1).