Running a binary file

[ramTn]

Hi everyone,

I recieved a file by email with no extension which is supposed to be the compiled version of a C++ code for linux.

The problem is that I am a beginner and I have absolutely no idea how to run this file and I also have limited access to the person who I recieved the file from. I already tried
chmod +x ./pp
./pp
both on ubuntu 32bit and Cygwin64bit, but it gives me the error "-bash: ./pp: cannot execute binary file".

Here is the link to the file:
https://www.dropbox.com/s/b9tmnrxwfj8bgup/pp

Would you please help me to figure out the issue and run this code?

Thank you in advance!

[anakai]

Have you tried using the bash before running it?

bash ./pp
or

sudo bash ./pp

But I would not recommend you to run it with sudo if you don't know what it is. I would never trie a file like this without any information on what it is.

[Impavidus]

It's normal for Linux executables to have no extension.

When I download the file and try and determine its file type, I get
$ file pp
pp: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=8be990d19f360b4cc0b217a3732a290ec50ec297, not strippedSo it's a 64 bit Linux executable. It won't run on 32 bit Linux systems. The 2.6.24 version number is no problem, I also get that when compiling code on my Trusty system. I don't know about Cygwin.

I'm not going to try and run this executable, as I don't know whether I can trust its source. But I think it should run on my system, provided all libraries are present. To find which libraries you need, I tried
$ objdump -p pp | grep NEEDED
NEEDED libstdc++.so.6
NEEDED libm.so.6
NEEDED libgcc_s.so.1
NEEDED libc.so.6I think these are all standard libraries.

[ramTn]

Thank you very much guys for your respond! Your comments are really helpful.


Have you tried using the bash before running it?

bash ./pp
or

sudo bash ./pp

But I would not recommend you to run it with sudo if you don't know what it is. I would never trie a file like this without any information on what it is.

I actully trust the source but the problem is that my Cygwin64 does not recognize the command "sudo". I'm installing ubuntu 64x to try it.


It's normal for Linux executables to have no extension.

When I download the file and try and determine its file type, I get
$ file pp
pp: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.24, BuildID[sha1]=8be990d19f360b4cc0b217a3732a290ec50ec297, not strippedSo it's a 64 bit Linux executable. It won't run on 32 bit Linux systems. The 2.6.24 version number is no problem, I also get that when compiling code on my Trusty system. I don't know about Cygwin.

I'm not going to try and run this executable, as I don't know whether I can trust its source. But I think it should run on my system, provided all libraries are present. To find which libraries you need, I tried
$ objdump -p pp | grep NEEDED
NEEDED libstdc++.so.6
NEEDED libm.so.6
NEEDED libgcc_s.so.1
NEEDED libc.so.6I think these are all standard libraries.

Sorry one more question, how can I make sure whether these four libraries are installed on my ubuntu? and if not, how can I install them?

UPDATE: It worked on ubuntu 64 bit! Thanks a lot!

[oldos2er]

Glad it worked! Would you please mark the thread as 'Solved' (under Thread Tools at the top of the page)? Thanks.