title: How to inspect a MacOS executable file (Mach-O)?
body: <p>How to see some basic information about a MacOS binary file, specifically what was used to build it, which frameworks it is linked against and what system calls it is using?</p>
  
  <p>I tried <code>nm</code> and <code>otool -L</code> but their output is only partially useful.</p>
  
  <p>For example, what would indicate that a binary was built with xcode or golang compiler?</p>
  
  <p><sup><em>NB. I am not interested in reverse engineering macos binaries. I just want to know better what is running on my system using just the tools that are already included OOTB.</em></sup></p>