issues with snapshots on linux

[AL_09]

so I have recently switched to an arch based linux distro and I'm having issues with installing snapshots. I have been able to install the base game just fine but when I try to replace the mxbin file with the updated snapshot mxbin I just get a permission denied error and I don't know why. I have tried running "./mx" in the terminal with sudo and still got the same permission denied error. Any help on how to fix this would be greatly appreciated.

[jlv]

It needs execute permission. Try "chmod +x mxbin".