Executable program files

Question

I have booted Ubuntu 16.04.1 Desktop from a DVD and am attempting to run a wallet program, specifically for Linux, that I downloaded from a website. I'm intimately familiar with the program as it runs on Windows and OSX. For Windows, the program is a simple .exe file (nexxuscoin-qt.exe) that is typically placed on the Desktop and run from there. For OSX, it is a simple .dmg file (nexxuscoin-qt.dmg) that is typically placed in the Applications folder and run from there.

For Linux it is a file without an extension, however the system identifies it as an executable file. It will not run. I'm completely new to Linux. I know there are other Linux users of this particular wallet program because they show up on the blockchain explorer. Must I fully install Ubuntu in order for a program to run or is there something else I'm missing? I have tried checking the box "allow executing file as program" but it makes no difference. The actual filename is: nexxuscoin-qt and as it's downloaded it's compressed. So, I unzipped it with Archive Manager. No matter what I try, it won't run.

I see mention of certain commands as well as references to libraries but I have no idea what they mean. As I said, I'm completely new to Linux. I obtained a space computer to install Ubuntu on with the provision that I backup certain document files before repartitioning the hard drive, which currently contains Windows XP. This will NOT be a dual-boot system. It will be 100% Ubuntu and yes, I have verified that I am attempting to run the correct program. I can determine which operating system it is compiled for by the version number.

$ file nexxuscoin-qt 
nexxuscoin-qt: ELF 64-bit LSB executable, x86-64, version 1 (GNU/Linux), dynamically linked, interpreter /lib64/ld-linux-x86-64.so.2, for GNU/Linux 2.6.24, BuildID[sha1]=236481a719334b8d222179b17fce5e222f668c98, not stripped

$ ldd nexxuscoin-qt 
linux-vdso.so.1 => (0x00007ffc4cda7000) 
libssl.so.1.0.0 => /lib/x86_64-linux-gnu/libssl.so.1.0.0 (0x00007f84ee1ef000) 
libcrypto.so.1.0.0 => /lib/x86_64-linux-gnu/libcrypto.so.1.0.0 (0x00007f84edd93000) 
libdb_cxx-4.8.so => not found 
libboost_system.so.1.54.0 => not found     
libboost_filesystem.so.1.54.0 => not found    
libboost_program_options.so.1.54.0 => not found 
libboost_thread.so.1.54.0 => not found
libQt5Widgets.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5 (0x00007f84ed704000) 
libQt5Network.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Network.so.5 (0x00007f84ed5aa000) 
libQt5Gui.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5 (0x00007f84ed062000) 
libQt5Core.so.5 => /usr/lib/x86_64-linux-gnu/libQt5Core.so.5 (0x00007f84ecb8b000) 
libpthread.so.0 => /lib/x86_64-linux-gnu/libpthread.so.0 (0x00007f84ec96e000) 
libstdc++.so.6 => /usr/lib/x86_64-linux-gnu/libstdc++.so.6 (0x00007f84ec5ec000)
libm.so.6 => /lib/x86_64-linux-gnu/libm.so.6 (0x00007f84ec2e2000)    
libgcc_s.so.1 => /lib/x86_64-linux-gnu/libgcc_s.so.1 (0x00007f84ec0cc000) 
libc.so.6 => /lib/x86_64-linux-gnu/libc.so.6 (0x00007f84ebd03000) 
libdl.so.2 => /lib/x86_64-linux-gnu/libdl.so.2 (0x00007f84ebafe000) 
libgobject-2.0.so.0 => /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 (0x00007f84eb8ab000) 
libglib-2.0.so.0 => /lib/x86_64-linux-gnu/libglib-2.0.so.0 (0x00007f84eb59a000) 
libX11.so.6 => /usr/lib/x86_64-linux-gnu/libX11.so.6 (0x00007f84eb25f000) 
libz.so.1 => /lib/x86_64-linux-gnu/libz.so.1 (0x00007f84eb045000)
libproxy.so.1 => /usr/lib/x86_64-linux-gnu/libproxy.so.1 (0x00007f84eae24000) 
libpng12.so.0 => /lib/x86_64-linux-gnu/libpng12.so.0 (0x00007f84eabfe000) 
libharfbuzz.so.0 => /usr/lib/x86_64-linux-gnu/libharfbuzz.so.0 (0x00007f84ea9a0000) 
libGL.so.1 => /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 (0x00007f84ea72f000) 
libicui18n.so.55 => /usr/lib/x86_64-linux-gnu/libicui18n.so.55 (0x00007f84ea2cc000) 
libicuuc.so.55 => /usr/lib/x86_64-linux-gnu/libicuuc.so.55 (0x00007f84e9f38000) 
libpcre16.so.3 => /usr/lib/x86_64-linux-gnu/libpcre16.so.3 (0x00007f84e9cd2000)
librt.so.1 => /lib/x86_64-linux-gnu/librt.so.1 (0x00007f84e9ac9000) /lib64/ld-linux-x86-64.so.2 (0x00005610d73c6000)     
libffi.so.6 => /usr/lib/x86_64-linux-gnu/libffi.so.6 (0x00007f84e98c1000) 
libpcre.so.3 => /lib/x86_64-linux-gnu/libpcre.so.3 (0x00007f84e9650000) 
libxcb.so.1 => /usr/lib/x86_64-linux-gnu/libxcb.so.1 (0x00007f84e942e000) 
libfreetype.so.6 => /usr/lib/x86_64-linux-gnu/libfreetype.so.6 (0x00007f84e9183000) 
libgraphite2.so.3 => /usr/lib/x86_64-linux-gnu/libgraphite2.so.3 (0x00007f84e8f5e000)
libexpat.so.1 => /lib/x86_64-linux-gnu/libexpat.so.1 (0x00007f84e8d35000) 
libxcb-dri3.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri3.so.0 (0x00007f84e8b32000) 
libxcb-present.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-present.so.0 (0x00007f84e892e000) 
libxcb-sync.so.1 => /usr/lib/x86_64-linux-gnu/libxcb-sync.so.1 (0x00007f84e8727000) 
libxshmfence.so.1 => /usr/lib/x86_64-linux-gnu/libxshmfence.so.1 (0x00007f84e8524000) 
libglapi.so.0 => /usr/lib/x86_64-linux-gnu/libglapi.so.0 (0x00007f84e82f5000) 
libXext.so.6 => /usr/lib/x86_64-linux-gnu/libXext.so.6 (0x00007f84e80e3000)
libXdamage.so.1 => /usr/lib/x86_64-linux-gnu/libXdamage.so.1 (0x00007f84e7ee0000) 
libXfixes.so.3 => /usr/lib/x86_64-linux-gnu/libXfixes.so.3 (0x00007f84e7cd9000) 
libX11-xcb.so.1 => /usr/lib/x86_64-linux-gnu/libX11-xcb.so.1 (0x00007f84e7ad7000) 
libxcb-glx.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-glx.so.0 (0x00007f84e78be000) 
libxcb-dri2.so.0 => /usr/lib/x86_64-linux-gnu/libxcb-dri2.so.0 (0x00007f84e76b8000)
libXxf86vm.so.1 => /usr/lib/x86_64-linux-gnu/libXxf86vm.so.1 (0x00007f84e74b2000) 
libdrm.so.2 => /usr/lib/x86_64-linux-gnu/libdrm.so.2 (0x00007f84e72a3000) 
libicudata.so.55 => /usr/lib/x86_64-linux-gnu/libicudata.so.55 (0x00007f84e57eb000) 
libXau.so.6 => /usr/lib/x86_64-linux-gnu/libXau.so.6 (0x00007f84e55e7000) 
libXdmcp.so.6 => /usr/lib/x86_64-linux-gnu/libXdmcp.so.6 (0x00007f84e53e0000)

The program I am attempting to run is NOT a Windows .exe file. However, I figured it couldn't hurt to install wine and to try running the program in wine. Or an alternative might be to install wine [sudo apt-get install wine] and try to run the Windows version of this wallet program in wine. However, when I tried to install wine the installation froze after displaying what appears to be a Microsoft truetype font software agreement and the "OK" that appears at the bottom is not clickable and there is no obvious way to continue or complete the installation. I would really prefer to run the Linux version of this program if possible.

Answer 1

Compiled executables usually don't have a file extension, scripts usually have the file extensions .sh but Linux systems don't care much about file extensions, or at least less than Windows and OS X.

Open a terminal where the file is. You can do this by right-clicking and choosing Open in Terminal.

Then type this:

./nex

, then press Tab to autocomplete and press Enter.

This will only work if you checked the "Allow executing file as program" box in advance (or made the file executable by other means like running chmod +x yourfilename).

If the program needs to be run with root privileges, use

sudo ./nex

and autocomplete.

This should not require the system to be installed.

From the output of file nexxuscoin-qt you have posted by now, it can be taken that you downloaded a binary for a x86-64 architecture, meaning it requires a 64-bit capable x84 CPU running a x86 64 bit operating system (commonly abbreviated to "64 bit OS" or something alike) in order to be executed.

You can easily test this by running

uname -a

whose output should end in x86_64 x86_64 x86_64 GNU/Linux. If it doesn't, you're not running an x86 64 bit GNU Linux. If there is a i386 in there, it means that you're running an x86 32 bit OS.