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hi guys,
I compiled a bash programming 3 years ago, unfortunately i lost the source code and i want to change only some lines of that code, is there any possibility or any approach to change (remove or add) some line of that code and the run it again?
No idea because it depends on what tool you used to "compile" your bash script? If you used shc you might be able to reconstruct the source code by the following technique.
Am i wrong?
I am supposed every compile version of any languages in linux, compile to the assembly and then run into the binary language that cpu understand it, so we could be "middle man" and change the assembly, so we could change some of our codes and variables in the source code without even know it.
Yes, reverse engineering a compiled program is not easy.
Again if you do not remember what tool you used there isn't much we can do.
For example CCsh is a commercial bash script compiler that converts your script to c code. I'm not familiar with the compiler but it would be extremely difficult to determine where any original bash variables are located much less be able to change any lines of code.
Am i wrong?
I am supposed every compile version of any languages in linux, compile to the assembly and then run into the binary language that cpu understand it, so we could be "middle man" and change the assembly, so we could change some of our codes and variables in the source code without even know it.
You are incorrect about a bash script. Bash is a scripting language and you do not compile the scripts, you merely run them.
In your first post you said you compiled it.
How did you compile something which doesn't require a compiler?
Am i wrong?
I am supposed every compile version of any languages in linux, compile to the assembly and then run into the binary language that cpu understand it, so we could be "middle man" and change the assembly, so we could change some of our codes and variables in the source code without even know it.
For a BASH script? That would be stupid. Just write the script again.
Compiling BASH scripts is even more stupid. Not sure how or why you did that, but you obviously shouldn't do that again.
(If this was something actually worth going to the effort to binary-patch, I would have recommended looking into ida pro).
maybe i could not tell my need, i want to reverse engineer bash programming and manipulate my old code. is there any source about reverse engineering bash linux?
maybe i could not tell my need, i want to reverse engineer bash programming and manipulate my old code. is there any source about reverse engineering bash linux?
To repeat myself it depends on what tool you used to "compile" your bash script. If you used shc it might be possible to recover your code. There is a link in the conclusions section that explains how to do it.
If you used CCsh then I would say not possible. CCsh coverts the bash script to c and then compiles. You can use a decompiler but you will only get c code and that will not be identical to the original code that was generated from the bash script. Nothing exists to get back to your original bash script.
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changing compiled bash program in redhat linux
