grep -E with Radare2

Question

With Radare2, I love the iI command.

I want to limit the output with grep or radare's own grep syntax.

How do I run a iI | grep -E 'bits | pic | stripped' against my binary?

[0x100001200]> iI
arch     x86
binsz    38688
bintype  mach0
bits     64
....
..
.

My intention is to run this command inside a python script using r2pipe.

Evan Carroll · Accepted Answer · 2018-10-27 11:05:53Z

6

Radare's grep is done by using the ~ character.

 ~?<br>
|Usage: [command]~[modifier][word,word][endmodifier][[column]][:line]

So to have the output you want just run:

iI~bits,pic,stripped

[0x100001200]> iI~bits,pic,stripped
bits     64
pic      true
stripped true

The same command you should run in your script. There's a lot of more that this grep can do. To get the help of it just run the ~?

Evan Carroll

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answered Jul 25, 2018 at 6:09

Paweł Łukasik

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Thanks. Just what I was looking for. Next I will try and work out why the json flag + grep instruction doesn't work with: iIj~bits,pic,stripped. But I can do that solo. Thanks again.
– rustyMagnet
Jul 25, 2018 at 7:17
1

json supports a limited grep in a form: iIj~{bits} but you would have to grep for the three things separately.
– Paweł Łukasik
Jul 25, 2018 at 14:59
That actually gives me a better answer. I can now use iIj~{stripped} as it return the value (true / false) instead of the Key Value Pair you get with iI~stripped (stripped true)
– rustyMagnet
Jul 26, 2018 at 6:41

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