i need help finding a command line hex editor

[MarioMasta64]

i need a hex editor that i can use via command prompt something such as write.exe -bytes 0A4E3726594E -output=file.bin -offset 0E7
anybody know if something like this exist and/or can be created? (ive read some documentation it can be made in c# c++ and vb.net but im not exactly able to do those languages..)

 

[MarioMasta64]

basically i need either something that exists or someone good in vb.net c# or c++. if it matters any. i can pay for the program to be custom made as it would obviously take time out of a busy devs day.

 

[MarioMasta64]

i might have someone making it in python. so far its going well. just fixing some kinks with him. anyone is still willing to write one.

 

[Larsenv]

That would be me...

 

[Deleted User]

vim maybe? Like, you can edit it in terminal. Not sure I know something that would do what you are asking

 

[MarioMasta64]

vim maybe? Like, you can edit it in terminal. Not sure I know something that would do what you are asking

what we have now:
readbytes.py <start offset> <end offset> <input> <output> (saves a text file in hex instead of raw data)
writebytes.py <bytes> <offset> <output>
it works but requires python to be installed. made by @Larsenv

 

[Larsenv]

Yup we got it to work

 

[MarioMasta64]

heres the code btw:

readbytes.py:

#Made By Larsenv
#https://github.com/Larsenv/

import binascii
import sys

if len(sys.argv) != 5:
    print("Usage: readbytes.py <start offset> <end offset> <input> <output>")
    sys.exit(1)

def main():
    with open(sys.argv[3], "rb") as source_file:
        read = source_file.read()

    with open(sys.argv[4], "wb") as dest_file:
        dest_file.write(binascii.hexlify(read[int(sys.argv[1], 16):int(sys.argv[2], 16)]))

main()

writebytes.py:

#Made By Larsenv
#https://github.com/Larsenv/

import binascii
import sys

if len(sys.argv) != 4:
     print("Usage: writebytes.py <bytes> <offset> <input>")
     sys.exit(1)

def main():
    with open(sys.argv[3], "r+b") as f:
        read = f.read()
        f.seek(int(sys.argv[2], 16))
        f.write(binascii.unhexlify(sys.argv[1]))

main()

made by @Larsenv 2017. good man. even wanted me to donate to riiconnect24 rather than him.

 

[Boogieboo6]

Wow, that's it? I was thinking of how to do it in C++, but I don't know enough to make something like that. Good work Larsenv!

 

[MarioMasta64]

Wow, that's it? I was thinking of how to do it in C++, but I don't know enough to make something like that. Good work Larsenv!

yea thats it lol. i couldve probably made it but i only know powershell vbs and batch (thank god i didnt try to make this in powershell) and youre free to do it if you want. if you need references for c++ way of doing it i have a few tabs pulled up for it.

 

[CMDreamer]

Have your tried with the Windows Shell? (Not Power Shell).

Try using:

C:\debug

Then type an ?, to get all the available commands.

 

[MarioMasta64]

also i made a modified one (that was really useful) by removing a single line in a buggy one (it would remove everything after) to remove everything after (im working on a 3ds -> dsi dsiware transfer program)
heres the code for that:

removeendbytes.py:

#Made By Larsenv
#https://github.com/Larsenv/

import binascii
import sys

if len(sys.argv) != 3:
     print("Usage: removeendbytes.py <offset> <input>")
     sys.exit(1)

def main():
    with open(sys.argv[2], "r+b") as f:
        read = f.read()
        f.seek(int(sys.argv[1], 16))
        f.truncate()

main()

--------------------- MERGED ---------------------------

Have your tried with the Windows Shell? (Not Power Shell).

Try using:

C:\debug

Then type an ?, to get all the available commands.

yea. but this works alot better and requires less code.

--------------------- MERGED ---------------------------

heres a test of how the files will be used:

@echo off
cls
Color 0A

call :skip

title test reading bytes from offset 1xF1 to 1xF6 in test.bin and writing in hex to test.txt
python readbytes.py 1F1 1F7 test.bin test.txt
pause

title test writing bytes DE24 to offset 1xF0 in test.bin
python writebytes.py DE24 1F0 test.bin
pause

title removing all bytes starting at offset 1xF6 all the way to the end
python removeendbytes.py 1F6 test.bin
pause

title removing all bytes starting at the 0x00 point and ending at offset 0x06
python removestartbytes.py 006 test.bin
pause

 

[MarioMasta64]

oh yea. heres another one (a revision before writebytes.py) that would write raw values to a file:

writebytesraw.py:

#Made By Larsenv
#https://github.com/Larsenv/

import binascii
import sys

if len(sys.argv) != 5:
    print("Usage: readbytes.py <start offset> <end offset> <input> <output>")
    sys.exit(1)

def main():
    with open(sys.argv[3], "rb") as source_file:
        read = source_file.read()

    with open(sys.argv[4], "wb") as dest_file:
        dest_file.write(read[int(sys.argv[1], 16):int(sys.argv[2], 16)])

main()

 

[MarioMasta64]

a new addition:
removestartbytes.py:

#Made By Larsenv
#https://github.com/Larsenv/

import binascii
import sys

if len(sys.argv) != 3:
    print("Usage: removestartbytes.py <bytes> <file>")

def main():
    with open(sys.argv[2], "rb") as f:
        read = f.read()[int(sys.argv[1]):]

    with open(sys.argv[2], "wb") as f:
        f.write(read)

main()

usage: python removestartbytes.py <end at this offset> <file>
exa: pythong removestartbytes.py 006 test.bin
this will remove all files upto ofset 006 but not 006 itself. so bytes 000-005 will be removed.

 

[MarioMasta64]

an archive containing all the scripts listed here.

 

[DanTheManMS]

Try Hexalter by Kuwanger: http://kuwanger.altervista.org/misc/hexalter.shtml

 

[MarioMasta64]

Try Hexalter by Kuwanger: http://kuwanger.altervista.org/misc/hexalter.shtml

too complex. but ill consider it maybe for the future.

 

[Deleted member 388531]

Aint command-line,but HxD works magic on modding my BL2 .upk's.

 

[MarioMasta64]

Aint command-line,but HxD works magic on modding my BL2 .upk's.

i have something i can use for command line. and yea HxD is great.

 

[MarioMasta64]

new addition:

directorysize.py:

#Made By Larsenv
#https://github.com/Larsenv/

import glob
import os
import sys

if len(sys.argv) != 3:
    print("Usage: directorysize.py <directory> <output>")

def main():
    with open(sys.argv[2], "wb") as dest_file:
        dest_file.write(str(sum(os.path.getsize(f) for f in glob.iglob(sys.argv[1] + "/**", recursive=True))).encode("utf-8"))

main()