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radare2 - Man Page

Advanced command-line hexadecimal editor, disassembler and debugger

Examples (TL;DR)


radare2[-a arch] [-b bits] [-B baddr] [-c cmd] [-e k=v] [-i file] [-I prefile] [-k kernel] [-m addr] [-p project] [-P patch] [-r rarun2] [-R rr2rule] [-s addr] [-0AdDjwntLquvVxX] -|--|=|file


radare2 is a command-line hexadecimal editor.

"r2" is the alias program name for radare2.

This manpage is not updated yet. Feel free to contribute.

The options are:


Open radare2 on an empty file


Equivalent of 'r2 malloc://512'


Print \x00 after initialization and after every command executed


Close stderr before starting RCore

-a arch

force asm.arch (x86, ppc, arm, mips, bf, java, ...)


run 'aaa' command before prompt or patch to analyze all referenced code. Use -AA to run aaaa

-b bits

force asm.bits (16, 32, 64)

-B baddr

Specify the base address to be used when loading a new binary. See 'e?bin.baddr'

-c cmd

Execute the given command before giving prompt


Start in debugger mode

-D dbg.backend

Enable debug mode. Set cfg.debug=true

-e k=v

Set configuration eval variable key=value. For example -e scr.color=false. When -e is passed after -j, it will set the script source to run instead of setting eval vars.


Blocksize = file size


Run QJS script if an argument is passed or enter the qjs shell if no file is specified. You can evaluate expressions when passing the -e flag after the -j.

-i file

Run script file. After the file is loaded

-I file

Run script file. Before the file is loaded

-k kernel

Select kernel (asm.os) for syscall resolution

-l plugfile

Load given plugin file


List loaded IO plugins.


List loaded core plugins.

-m addr

map file at given address


Disable demangling


Do not perform any analysis (r_bin). Just load the raw file


Only load the rbin structures (elf, mach0, ...)


Do not load user settings/projects from ~/.radare2rc, ~/.config/radare2/radare2rc and the scripts inside .../radare2rc.d/ directory.


Same as -N but also disables the automatic loading of plugins on startup time


Quiet mode (no prompt) and quit after running the commands specified with -i or -c


Quit before showing the prompt. Right after all the -e -c and -i arguments are evaluated.


Same as q, but exiting without freeing RCore, this produces leaks at exit time, but saves some precious ms to run the testsuite in fast mode.

-p prj

Set project file

-P file

Apply rapatch file and quit (see doc/rapatch.md for more details)

-r rarun2

Specify dbg.profile rarun2 profile to use when spawning a program for debugging

-R rarun2-directive

Specify custom rarun2 directives without having to create a rarun2 profile

-s addr

Start seeking at this address


Enable sandboxed mode (same as -e cfg.sandbox=true)


Get binary information and analyze binary in a background thread


Avoid computing the file hashes


Set bin.filter=false to load rbin info without filtering names


Show version information and exit (Use -qv to get just the version number)


Show radare2 library versions (prints JSON format if -j is used)


Open in write mode


Show help message


Show files and environment help


Open the file map without executable permissions


Same as -e bin.usextr=false, do not use extract plugins, useful for dyldcache


Type '?' for help


To enter visual mode use the 'V' command. Then press '?' for help


In r2 the debugger commands are implemented under the 'd' command. Type 'd?' for help


R2_ARGS run radare2 with defined arguments in environment and ignore cli ones
R2_IGNVER load plugins ignoring the specified version. (be careful)
R2_DEBUG if defined, show error messages and crash signal
R2_DEBUG_ASSERT=1 set a breakpoint when hitting an assert
R2_MAGICPATH /Users/pancake/.local/share/radare2/share/radare2/4.5.0-git/magic
R2_NOPLUGINS do not load r2 shared plugins
R2_RCFILE ~/.radare2rc (user preferences, batch script)
R2_RDATAHOME /usr/local FILE path to the current working file.

See Also

r2r(1), rahash2(1), rafind2(1), rabin2(1), radiff2(1), rasm2(1), rax2(1), ravc2(1), ragg2(1), rarun2(1),


pancake <pancake@nopcode.org>

Referenced By

esil(7), r2agent(1), r2pm(1), rabin2(1), radiff2(1), rafind2(1), ragg2(1), rahash2(1), rarun2(1), rasign2(1), rasm2(1), ravc2(1), rax2(1).

May 20, 2022