“cannot execute binary file” with cygwin

I have installed 64-bit cygwin in the folder C:\cygwin Running “C:\cygwin\bin\sh.exe” /bin/ls results in /bin/ls: /bin/ls: cannot execute binary file Why? Using the file command, I can see that the binaries are 64-bit. C:\test>”C:\cygwin\bin\sh.exe” sh-4.4$ file /bin/sh /bin/sh: PE32+ executable (console) x86-64 (stripped to external PDB), for MS Windows sh-4.4$ file /bin/ls /bin/ls: PE32+ executable…